remote.c: simplify a bit of code using git_config_string()

A small segment where handle_config() parses the branch.remote
configuration variable can be simplified using git_config_string().

Signed-off-by: Ramkumar Ramachandra <[email protected]>
Reviewed-by: Jeff King <[email protected]>
Signed-off-by: Junio C Hamano <[email protected]>

Author: artagnon

remote.c

@@ -357,9 +357,8 @@ static int handle_config(const char *key, const char *value, void *cb)
 			return 0;
 		branch = make_branch(name, subkey - name);
 		if (!strcmp(subkey, ".remote")) {
-			if (!value)
-				return config_error_nonbool(key);
-			branch->remote_name = xstrdup(value);
+			if (git_config_string(&branch->remote_name, key, value))
+				return -1;
 			if (branch == current_branch) {
 				default_remote_name = branch->remote_name;
 				explicit_default_remote_name = 1;