i18n: git-am multi-line getttext $msg; echo

When we have multi-line `gettext $msg; echo' messages we can't
preserve the existing indenting because gettext(1) can't accept input
on stdin.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

git-am.sh

@@ -757,16 +757,16 @@ do
 		# working tree.
 		resolved=
 		git diff-index --quiet --cached HEAD -- && {
-			echo "No changes - did you forget to use 'git add'?"
-			echo "If there is nothing left to stage, chances are that something else"
-			echo "already introduced the same changes; you might want to skip this patch."
+			gettext "No changes - did you forget to use 'git add'?
+If there is nothing left to stage, chances are that something else
+already introduced the same changes; you might want to skip this patch."; echo
 			stop_here_user_resolve $this
 		}
 		unmerged=$(git ls-files -u)
 		if test -n "$unmerged"
 		then
-			echo "You still have unmerged paths in your index"
-			echo "did you forget to use 'git add'?"
+			gettext "You still have unmerged paths in your index
+did you forget to use 'git add'?"; echo
 			stop_here_user_resolve $this
 		fi
 		apply_status=0