Merge branch 'rl/maint-stash-i18n-save-error' into maint

i18n marking for an error message for "git stash --notavalidoption"
was incorrect.

By Ross Lagerwall
* rl/maint-stash-i18n-save-error:
  stash: use eval_gettextln correctly

Author: gitster

git-stash.sh

@@ -199,8 +199,8 @@ save_stash () {
 			#    $ git stash save --blah-blah 2>&1 | head -n 2
 			#    error: unknown option for 'stash save': --blah-blah
 			#           To provide a message, use git stash save -- '--blah-blah'
-			eval_gettextln "$("error: unknown option for 'stash save': \$option
-       To provide a message, use git stash save -- '\$option'")"
+			eval_gettextln "error: unknown option for 'stash save': \$option
+       To provide a message, use git stash save -- '\$option'"
 			usage
 			;;
 		*)