Restore the on-line ".help" for the ".explain" command in the CLI.

FossilOrigin-Name: 28b8f1036d569bccce56b4e7042348024b5dd1ffa04850cbeddab1e35c49e5b7

manifest

@@ -1,5 +1,5 @@
-C Fix\sa\sharmless\scompiler\swarning.
-D 2019-11-01T18:52:09.874
+C Restore\sthe\son-line\s".help"\sfor\sthe\s".explain"\scommand\sin\sthe\sCLI.
+D 2019-11-02T00:00:14.956
 F .fossil-settings/empty-dirs dbb81e8fc0401ac46a1491ab34a7f2c7c0452f2f06b54ebb845d024ca8283ef1
 F .fossil-settings/ignore-glob 35175cdfcf539b2318cb04a9901442804be81cd677d8b889fcc9149c21f239ea
 F LICENSE.md df5091916dbb40e6e9686186587125e1b2ff51f022cc334e886c19a0e9982724
@@ -527,7 +527,7 @@ F src/random.c 80f5d666f23feb3e6665a6ce04c7197212a88384
 F src/resolve.c cf2391c93d425455388389e7a47674b9da107d2ed69ebf49979044d70dbeb045
 F src/rowset.c d977b011993aaea002cab3e0bb2ce50cf346000dff94e944d547b989f4b1fe93
 F src/select.c 3395765ea3749341deb4c25e8339c3d626a8ac641a52c216e9632e48e620ba68
-F src/shell.c.in a17d143f186966ef24927b6b083f985ffdb95a01aa1bebaba7dcc706289bf7d2
+F src/shell.c.in c06961f202f3cc50b819744b7331d3caea3d79d958402f4900b0668248557468
 F src/sqlite.h.in 5ba20664cede7f4e6861541fad1f17bac50f7bf576b40a8784c54f9126a9edd4
 F src/sqlite3.rc 5121c9e10c3964d5755191c80dd1180c122fc3a8
 F src/sqlite3ext.h cef696ce3293242c67b2339763608427bf72ee66f1f3a05389ac2a7b46001c31
@@ -1849,7 +1849,7 @@ F vsixtest/vsixtest.tcl 6a9a6ab600c25a91a7acc6293828957a386a8a93
 F vsixtest/vsixtest.vcxproj.data 2ed517e100c66dc455b492e1a33350c1b20fbcdc
 F vsixtest/vsixtest.vcxproj.filters 37e51ffedcdb064aad6ff33b6148725226cd608e
 F vsixtest/vsixtest_TemporaryKey.pfx e5b1b036facdb453873e7084e1cae9102ccc67a0
-P b47513d2b32b61ba42c1e9b59287d28f6fee231e6c65de2a3aa19effbbaf1e7f
-R 9e3d2107d32c72e319286df31770e0b6
+P f0ebea35d9d6b69a7bb4242fb79ff3db4267e429855fa6969f9f52ffee1c7a99
+R dd0ad84e2261a2b2882eb0334a888497
 U drh
-Z c4f517c0931673ac6eefe915d1bbfedb
+Z 9ba7e5973ff9e00cea7e79d70e4ff8aa

manifest.uuid

@@ -1 +1 @@
-f0ebea35d9d6b69a7bb4242fb79ff3db4267e429855fa6969f9f52ffee1c7a99
+28b8f1036d569bccce56b4e7042348024b5dd1ffa04850cbeddab1e35c49e5b7

src/shell.c.in

@@ -3511,9 +3511,7 @@ static const char *(azHelp[]) = {
   ".excel                   Display the output of next command in spreadsheet",
   ".exit ?CODE?             Exit this program with return-code CODE",
   ".expert                  EXPERIMENTAL. Suggest indexes for queries",
-/* Because explain mode comes on automatically now, the ".explain" mode
-** is removed from the help screen. It is still supported for legacy, however */
-/*".explain ?on|off|auto?   Turn EXPLAIN output mode on or off",*/
+  ".explain ?on|off|auto?   Change the EXPLAIN formatting mode.  Default: auto",
   ".filectrl CMD ...        Run various sqlite3_file_control() operations",
   "                           Run \".filectrl\" with no arguments for details",
   ".fullschema ?--indent?   Show schema and the content of sqlite_stat tables",