i18n: branch: mark comment when editing branch description for translation

When one issues git branch --edit-description branch_name, a edit with
that message commented out is opened. Mark that message for translation
in to order to be localized.

Signed-off-by: Vasco Almeida <vascomalmeida@sapo.pt>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

builtin/branch.c

@@ -614,9 +614,9 @@ static int edit_branch_description(const char *branch_name)
 	if (!buf.len || buf.buf[buf.len-1] != '\n')
 		strbuf_addch(&buf, '\n');
 	strbuf_commented_addf(&buf,
-		    "Please edit the description for the branch\n"
-		    "  %s\n"
-		    "Lines starting with '%c' will be stripped.\n",
+		    _("Please edit the description for the branch\n"
+		      "  %s\n"
+		      "Lines starting with '%c' will be stripped.\n"),
 		    branch_name, comment_line_char);
 	if (write_file_gently(git_path(edit_description), "%s", buf.buf)) {
 		strbuf_release(&buf);