config: simplify git_config_include()

Instead of using skip_prefix() to check the first part of the string
and then strcmp() to check the rest, simply use strcmp() to check the
whole string.
Signed-off-by: NRene Scharfe <l.s.r@web.de>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

config.c

@@ -127,7 +127,6 @@ static int handle_path_include(const char *path, struct config_include_data *inc
 int git_config_include(const char *var, const char *value, void *data)
 {
 	struct config_include_data *inc = data;
-	const char *type;
 	int ret;
 
 	/*
@@ -138,10 +137,7 @@ int git_config_include(const char *var, const char *value, void *data)
 	if (ret < 0)
 		return ret;
 
-	if (!skip_prefix(var, "include.", &type))
-		return ret;
-
-	if (!strcmp(type, "path"))
+	if (!strcmp(var, "include.path"))
 		ret = handle_path_include(value, inc);
 	return ret;
 }