i18n: git-submodule echo + eval_gettext messages

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

git-submodule.sh

@@ -234,7 +234,7 @@ cmd_add()
 	then
 		if test -d "$path"/.git -o -f "$path"/.git
 		then
-			echo "Adding existing repo at '$path' to the index"
+			eval_gettext "Adding existing repo at '\$path' to the index"; echo
 		else
 			die "'$path' already exists and is not a valid git repo"
 		fi
@@ -658,7 +658,10 @@ cmd_summary() {
 				;; # removed
 			*)
 				# unexpected type
-				echo >&2 "unexpected mode $mod_dst"
+				(
+					eval_gettext "unexpected mode \$mod_dst" &&
+					echo
+				) >&2
 				continue ;;
 			esac
 		fi