diff --git a/tests/src/vfs/extfs/helpers-list/data/u7z.complex.output b/tests/src/vfs/extfs/helpers-list/data/u7z.complex.output
index d5935dc66..93012b14e 100644
--- a/tests/src/vfs/extfs/helpers-list/data/u7z.complex.output
+++ b/tests/src/vfs/extfs/helpers-list/data/u7z.complex.output
@@ -1,27 +1,27 @@
--rw-r--r--   1  <<uid>>  <<gid>>     469920 2011-11-03 02:33:04 cpuidsdk64.dll
--rw-r--r--   1  <<uid>>  <<gid>>     445814 2011-11-03 02:33:04 cpuidsdk.dll
--rw-r--r--   1  <<uid>>  <<gid>>    1178084 2011-11-03 02:33:04 Geekbench22.exe
--rw-r--r--   1  <<uid>>  <<gid>>     101652 2011-11-03 02:33:04 geekbench.exe
--rw-r--r--   1  <<uid>>  <<gid>>     737580 2011-11-03 02:33:04 geekbench.plar
--rw-r--r--   1  <<uid>>  <<gid>>    1058731 2011-11-03 02:33:06 geekbench_x86_32.exe
--rw-r--r--   1  <<uid>>  <<gid>>    1192155 2011-11-03 02:33:06 geekbench_x86_64.exe
+-rw-r--r--   1  <<uid>>  <<gid>>       6144 2007-07-07 07:07:07 $PLUGINSDIR/AdvSplash.dll
+-rw-r--r--   1  <<uid>>  <<gid>>       8005 2007-07-07 07:07:07 $PLUGINSDIR/InstallOptions.dll
+-rw-r--r--   1  <<uid>>  <<gid>>       3328 2007-07-07 07:07:07 $PLUGINSDIR/StartMenu.dll
+-rw-r--r--   1  <<uid>>  <<gid>>        134 2007-11-15 01:12:38 $PLUGINSDIR/ioSpecial.ini
+-rw-r--r--   1  <<uid>>  <<gid>>       1886 2003-09-24 00:34:00 $PLUGINSDIR/modern-wizard.bmp
+-rw-r--r--   1  <<uid>>  <<gid>>      28016 2006-08-11 23:49:28 $PLUGINSDIR/splash.bmp
 -rw-r--r--   1  <<uid>>  <<gid>>       4014 2011-11-03 02:23:16 $_OUTDIR/html/ui/bg-repeat.gif
 -rw-r--r--   1  <<uid>>  <<gid>>      12817 2011-11-03 02:23:16 $_OUTDIR/html/ui/callout-bg-bottom.gif
 -rw-r--r--   1  <<uid>>  <<gid>>      14648 2011-11-03 02:23:16 $_OUTDIR/html/ui/callout-bg-top.gif
 -rw-r--r--   1  <<uid>>  <<gid>>        120 2011-11-03 02:23:16 $_OUTDIR/html/ui/graph-background.png
--rw-r--r--   1  <<uid>>  <<gid>>       9854 2011-11-03 02:23:16 $_OUTDIR/html/ui/heading-bg.gif
 -rw-r--r--   1  <<uid>>  <<gid>>        861 2011-11-03 02:23:16 $_OUTDIR/html/ui/heading-bg-left.gif
+-rw-r--r--   1  <<uid>>  <<gid>>       9854 2011-11-03 02:23:16 $_OUTDIR/html/ui/heading-bg.gif
 -rw-r--r--   1  <<uid>>  <<gid>>      30401 2011-11-03 02:23:16 $_OUTDIR/html/ui/logo.gif
 -rw-r--r--   1  <<uid>>  <<gid>>       1431 2011-11-03 02:23:16 $_OUTDIR/html/ui/nav-arrow-down.gif
--rw-r--r--   1  <<uid>>  <<gid>>       1425 2011-11-03 02:23:16 $_OUTDIR/html/ui/nav-arrows-bg.gif
 -rw-r--r--   1  <<uid>>  <<gid>>       1446 2011-11-03 02:23:16 $_OUTDIR/html/ui/nav-arrow-up.gif
--rw-r--r--   1  <<uid>>  <<gid>>       2885 2011-11-03 02:23:16 $_OUTDIR/html/ui/table-wrapper-bg-repeat.gif
+-rw-r--r--   1  <<uid>>  <<gid>>       1425 2011-11-03 02:23:16 $_OUTDIR/html/ui/nav-arrows-bg.gif
 -rw-r--r--   1  <<uid>>  <<gid>>       3841 2011-11-03 02:23:16 $_OUTDIR/html/ui/table-wrapper-bg-repeat-x.gif
+-rw-r--r--   1  <<uid>>  <<gid>>       2885 2011-11-03 02:23:16 $_OUTDIR/html/ui/table-wrapper-bg-repeat.gif
 -rw-r--r--   1  <<uid>>  <<gid>>     142162 2011-11-03 02:23:16 $_OUTDIR/ux/splash-screen.png
--rw-r--r--   1  <<uid>>  <<gid>>       6144 2007-07-07 07:07:07 $PLUGINSDIR/AdvSplash.dll
--rw-r--r--   1  <<uid>>  <<gid>>       8005 2007-07-07 07:07:07 $PLUGINSDIR/InstallOptions.dll
--rw-r--r--   1  <<uid>>  <<gid>>        134 2007-11-15 01:12:38 $PLUGINSDIR/ioSpecial.ini
--rw-r--r--   1  <<uid>>  <<gid>>       1886 2003-09-24 00:34:00 $PLUGINSDIR/modern-wizard.bmp
--rw-r--r--   1  <<uid>>  <<gid>>      28016 2006-08-11 23:49:28 $PLUGINSDIR/splash.bmp
--rw-r--r--   1  <<uid>>  <<gid>>       3328 2007-07-07 07:07:07 $PLUGINSDIR/StartMenu.dll
+-rw-r--r--   1  <<uid>>  <<gid>>    1178084 2011-11-03 02:33:04 Geekbench22.exe
+-rw-r--r--   1  <<uid>>  <<gid>>     445814 2011-11-03 02:33:04 cpuidsdk.dll
+-rw-r--r--   1  <<uid>>  <<gid>>     469920 2011-11-03 02:33:04 cpuidsdk64.dll
+-rw-r--r--   1  <<uid>>  <<gid>>     101652 2011-11-03 02:33:04 geekbench.exe
+-rw-r--r--   1  <<uid>>  <<gid>>     737580 2011-11-03 02:33:04 geekbench.plar
+-rw-r--r--   1  <<uid>>  <<gid>>    1058731 2011-11-03 02:33:06 geekbench_x86_32.exe
+-rw-r--r--   1  <<uid>>  <<gid>>    1192155 2011-11-03 02:33:06 geekbench_x86_64.exe
 -rw-r--r--   1  <<uid>>  <<gid>>          0 2007-07-07 07:07:07 plugins/shared memory/uninstall.exe
diff --git a/tests/src/vfs/extfs/helpers-list/data/u7z.missing-size-and-date.output b/tests/src/vfs/extfs/helpers-list/data/u7z.missing-size-and-date.output
index d7e2e056f..260b70580 100644
--- a/tests/src/vfs/extfs/helpers-list/data/u7z.missing-size-and-date.output
+++ b/tests/src/vfs/extfs/helpers-list/data/u7z.missing-size-and-date.output
@@ -1,9 +1,9 @@
--rw-r--r--   1  <<uid>>  <<gid>>     469920 2011-11-01 01:33:04 cpuidsdk64.dll
--rw-r--r--   1  <<uid>>  <<gid>>   17770090 2007-07-07 07:07:07 no-date-cpuidsdk64.dll
-drwxr-xr-x   1  <<uid>>  <<gid>>          0 2007-07-07 07:07:07 no-date-$_OUTDIR/html/ui
-drwxr-xr-x   1  <<uid>>  <<gid>>          0 2007-07-07 07:07:07 no-date-test
--rw-r--r--   1  <<uid>>  <<gid>>          0 2007-07-07 07:07:07 no-date-test.dll
 drwxr-xr-x   1  <<uid>>  <<gid>>          0 2011-11-02 02:23:16 $_OUTDIR/html/ui
 -rw-r--r--   1  <<uid>>  <<gid>>      17897 2011-11-05 05:23:16 $_OUTDIR/html/ui/callout-bg-bottom.gif
+-rw-r--r--   1  <<uid>>  <<gid>>     469920 2011-11-01 01:33:04 cpuidsdk64.dll
+drwxr-xr-x   1  <<uid>>  <<gid>>          0 2007-07-07 07:07:07 no-date-$_OUTDIR/html/ui
+-rw-r--r--   1  <<uid>>  <<gid>>   17770090 2007-07-07 07:07:07 no-date-cpuidsdk64.dll
+drwxr-xr-x   1  <<uid>>  <<gid>>          0 2007-07-07 07:07:07 no-date-test
+-rw-r--r--   1  <<uid>>  <<gid>>          0 2007-07-07 07:07:07 no-date-test.dll
 drwxr-xr-x   1  <<uid>>  <<gid>>          0 2011-11-04 04:23:16 test
 -rw-r--r--   1  <<uid>>  <<gid>>          0 2011-11-03 03:33:04 test.dll
diff --git a/tests/src/vfs/extfs/helpers-list/data/u7z.simple.output b/tests/src/vfs/extfs/helpers-list/data/u7z.simple.output
index e0bdfa02a..009d8fd21 100644
--- a/tests/src/vfs/extfs/helpers-list/data/u7z.simple.output
+++ b/tests/src/vfs/extfs/helpers-list/data/u7z.simple.output
@@ -20,7 +20,7 @@
 -rw-r--r--   1  <<uid>>  <<gid>>        233 2005-11-14 04:41:01 vp
 -rw-r--r--   1  <<uid>>  <<gid>>          0 2016-12-18 22:30:42 with spaces.txt
 drwxr-xr-x   1  <<uid>>  <<gid>>          0 2016-10-26 08:35:48 x
--rw-r--r--   1  <<uid>>  <<gid>>         58 2003-02-17 15:11:46 xcopy
+-rw-r--r--   1  <<uid>>  <<gid>>        340 2010-01-31 23:04:48 x/.xsession
 drwxr-xr-x   1  <<uid>>  <<gid>>          0 2009-05-03 21:01:33 x/etc
 drwxr-xr-x   1  <<uid>>  <<gid>>          0 2009-05-03 21:02:13 x/etc/X11
 drwxr-xr-x   1  <<uid>>  <<gid>>          0 2006-05-02 10:12:38 x/etc/X11/xinit
@@ -33,10 +33,10 @@ drwxr-xr-x   1  <<uid>>  <<gid>>          0 2005-12-04 19:15:47 x/etc/X11/xinit/
 -rw-r--r--   1  <<uid>>  <<gid>>         81 2005-09-02 17:36:13 x/etc/X11/xinit/xinitrc.d/xmbind.sh
 drwxr-xr-x   1  <<uid>>  <<gid>>          0 2009-05-03 21:07:38 x/etc/X11/xkb
 -rw-r--r--   1  <<uid>>  <<gid>>         71 2009-05-03 21:07:38 x/etc/X11/xkb/note.txt
--rw-r--r--   1  <<uid>>  <<gid>>         58 2003-02-17 15:10:46 xpaste
 -rw-r--r--   1  <<uid>>  <<gid>>        489 2003-08-03 01:46:40 x/setxkb
 -rw-r--r--   1  <<uid>>  <<gid>>        142 2003-03-09 14:08:01 x/setxkb2
 -rw-r--r--   1  <<uid>>  <<gid>>        158 2002-11-08 13:28:37 x/x
 -rw-r--r--   1  <<uid>>  <<gid>>       3746 2006-12-07 11:30:57 x/xinitrc
 -rw-r--r--   1  <<uid>>  <<gid>>         42 2006-12-07 11:28:18 x/xs
--rw-r--r--   1  <<uid>>  <<gid>>        340 2010-01-31 23:04:48 x/.xsession
+-rw-r--r--   1  <<uid>>  <<gid>>         58 2003-02-17 15:11:46 xcopy
+-rw-r--r--   1  <<uid>>  <<gid>>         58 2003-02-17 15:10:46 xpaste
diff --git a/tests/src/vfs/extfs/helpers-list/data/urar.v4,v3.output b/tests/src/vfs/extfs/helpers-list/data/urar.v4,v3.output
index 771ab45be..95685985c 100644
--- a/tests/src/vfs/extfs/helpers-list/data/urar.v4,v3.output
+++ b/tests/src/vfs/extfs/helpers-list/data/urar.v4,v3.output
@@ -1,9 +1,9 @@
 drwx------   1  <<uid>>  <<gid>>          0 2016-06-07 20:43:00 ./.dosbox
 -rw-rw-r--   1  <<uid>>  <<gid>>      10730 2016-06-07 20:43:00 ./.dosbox/dosbox-0.74.conf
--rw-r--r--   1  <<uid>>  <<gid>>          6 2016-11-23 07:39:00 ./filename with spaces.txt
--rw-rw-r--   1  <<uid>>  <<gid>>    5869937 2016-11-23 07:43:00 ./log.txt
 -rw-------   1  <<uid>>  <<gid>>      11032 2016-11-23 07:10:00 ./.viminfo
 -rw-rw-r--   1  <<uid>>  <<gid>>        205 2016-10-26 13:14:00 ./.wget-hsts
 -rw-rw-r--   1  <<uid>>  <<gid>>       7527 2016-04-17 01:21:00 ./.xboardrc
 -rw-rw-r--   1  <<uid>>  <<gid>>        559 2016-09-29 01:08:00 ./.xchm
 -rw-rw-r--   1  <<uid>>  <<gid>>        130 2015-12-27 17:08:00 ./.xinputrc
+-rw-r--r--   1  <<uid>>  <<gid>>          6 2016-11-23 07:39:00 ./filename with spaces.txt
+-rw-rw-r--   1  <<uid>>  <<gid>>    5869937 2016-11-23 07:43:00 ./log.txt
diff --git a/tests/src/vfs/extfs/helpers-list/data/urar.v5.output b/tests/src/vfs/extfs/helpers-list/data/urar.v5.output
index 771ab45be..95685985c 100644
--- a/tests/src/vfs/extfs/helpers-list/data/urar.v5.output
+++ b/tests/src/vfs/extfs/helpers-list/data/urar.v5.output
@@ -1,9 +1,9 @@
 drwx------   1  <<uid>>  <<gid>>          0 2016-06-07 20:43:00 ./.dosbox
 -rw-rw-r--   1  <<uid>>  <<gid>>      10730 2016-06-07 20:43:00 ./.dosbox/dosbox-0.74.conf
--rw-r--r--   1  <<uid>>  <<gid>>          6 2016-11-23 07:39:00 ./filename with spaces.txt
--rw-rw-r--   1  <<uid>>  <<gid>>    5869937 2016-11-23 07:43:00 ./log.txt
 -rw-------   1  <<uid>>  <<gid>>      11032 2016-11-23 07:10:00 ./.viminfo
 -rw-rw-r--   1  <<uid>>  <<gid>>        205 2016-10-26 13:14:00 ./.wget-hsts
 -rw-rw-r--   1  <<uid>>  <<gid>>       7527 2016-04-17 01:21:00 ./.xboardrc
 -rw-rw-r--   1  <<uid>>  <<gid>>        559 2016-09-29 01:08:00 ./.xchm
 -rw-rw-r--   1  <<uid>>  <<gid>>        130 2015-12-27 17:08:00 ./.xinputrc
+-rw-r--r--   1  <<uid>>  <<gid>>          6 2016-11-23 07:39:00 ./filename with spaces.txt
+-rw-rw-r--   1  <<uid>>  <<gid>>    5869937 2016-11-23 07:43:00 ./log.txt
diff --git a/tests/src/vfs/extfs/helpers-list/test_all b/tests/src/vfs/extfs/helpers-list/test_all
index 69a4a248c..f5f9be616 100755
--- a/tests/src/vfs/extfs/helpers-list/test_all
+++ b/tests/src/vfs/extfs/helpers-list/test_all
@@ -58,6 +58,17 @@ EOS
 
 #"'
 
+#
+# Some helpers use the 'sort' utility. The "expected output" files we
+# provide must be generated in the same locale these helpers are to be run
+# by the tester or else 'sort' will produce a different output than ours,
+# failing the tests.
+#
+# We settle on the C locale.
+#
+LC_ALL=C
+export LC_ALL
+
 ############################ Global variables ##############################
 
 # The directories used.