rename git_config_from_buf to git_config_from_mem

This matches the naming used in the index_{fd,mem,...} functions.

Suggested-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Lars Schneider <larsxschneider@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

cache.h

@@ -1485,7 +1485,7 @@ struct git_config_source {
 typedef int (*config_fn_t)(const char *, const char *, void *);
 extern int git_default_config(const char *, const char *, void *);
 extern int git_config_from_file(config_fn_t fn, const char *, void *);
-extern int git_config_from_buf(config_fn_t fn, const char *name,
+extern int git_config_from_mem(config_fn_t fn, const char *name,
 			       const char *buf, size_t len, void *data);
 extern void git_config_push_parameter(const char *text);
 extern int git_config_from_parameters(config_fn_t fn, void *data);

config.c

@@ -1096,7 +1096,7 @@ int git_config_from_file(config_fn_t fn, const char *filename, void *data)
 	return ret;
 }
 
-int git_config_from_buf(config_fn_t fn, const char *name, const char *buf,
+int git_config_from_mem(config_fn_t fn, const char *name, const char *buf,
 			size_t len, void *data)
 {
 	struct config_source top;
@@ -1132,7 +1132,7 @@ static int git_config_from_blob_sha1(config_fn_t fn,
 		return error("reference '%s' does not point to a blob", name);
 	}
 
-	ret = git_config_from_buf(fn, name, buf, size, data);
+	ret = git_config_from_mem(fn, name, buf, size, data);
 	free(buf);
 
 	return ret;

submodule-config.c

@@ -427,7 +427,7 @@ static const struct submodule *config_from(struct submodule_cache *cache,
 	parameter.commit_sha1 = commit_sha1;
 	parameter.gitmodules_sha1 = sha1;
 	parameter.overwrite = 0;
-	git_config_from_buf(parse_config, rev.buf, config, config_size,
+	git_config_from_mem(parse_config, rev.buf, config, config_size,
 			&parameter);
 	free(config);