Change pipeline in sets building so proper error detection for each stage

can be detected. This way sets stop building at the exact file that doesn't
exist rather than continuing.

distrib/sets/maketars

@@ -1,6 +1,6 @@
 #!/bin/sh
 #
-# $NetBSD: maketars,v 1.14 2000/10/01 22:49:05 thorpej Exp $
+# $NetBSD: maketars,v 1.15 2001/01/22 07:03:44 jmc Exp $
 #
 # Make release tar files for some or all lists.  Usage:
 # maketars [-b] [-x] [-a arch] [-m machine] [-s setsdir] [-d destdir] \
@@ -77,10 +77,11 @@ if [ -z "$dest" ]; then
 	exit 1
 fi
 
+trap 'rm -f ${dest}/tmp/flist' 0
+set -e
 for setname in $lists; do
 	out=$setname.tgz
 	echo "making $out"
-	sh $setd/makeflist -a $arch -m $machine -s $setd $setname |
-	  (cd $dest ; pax -w -d) |
-	  gzip -9 > ${tars}/$out
+	sh $setd/makeflist -a $arch -m $machine -s $setd $setname > ${dest}/tmp/flist
+	(cd $dest ; pax -w -d -z < ${dest}/tmp/flist) > ${tars}/$out
 done