git-config: Remove extra whitespaces

Remove extra whitespaces introduced by commits
01ebb9dc and fc1905bb

Signed-off-by: Pavan Kumar Sunkara <pavan.sss1991@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

config.c

diff --git a/config.c b/config.c
index e0b3b80..113723b 100644
--- a/config.c
+++ b/config.c
@@ -1479,10 +1479,10 @@
 		}
 	}
 	fclose(config_file);
- unlock_and_out:
+unlock_and_out:
 	if (commit_lock_file(lock) < 0)
 		ret = error("could not commit config file %s", config_filename);
- out:
+out:
 	free(config_filename);
 	return ret;
 }