remote-curl: remove label indentation

In the codebase, labels are aligned to the leftmost column. Remove the
space-indentation from `free_specs:` to conform to this.

Signed-off-by: Denton Liu <liu.denton@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

remote-curl.c

@@ -1276,7 +1276,7 @@ static void parse_push(struct strbuf *buf)
 	if (ret)
 		exit(128); /* error already reported */
 
- free_specs:
+free_specs:
 	argv_array_clear(&specs);
 }