Merge branch 'sp/reflog'

* sp/reflog:
  fetch.c: do not pass uninitialized lock to unlock_ref().
  Test that git-branch -l works.
  Verify git-commit provides a reflog message.
  Enable ref log creation in git checkout -b.
  Create/delete branch ref logs.
  Include ref log detail in commit, reset, etc.
  Change order of -m option to update-ref.
  Correct force_write bug in refs.c
  Change 'master@noon' syntax to 'master@{noon}'.
  Log ref updates made by fetch.
  Force writing ref if it doesn't exist.
  Added logs/ directory to repository layout.
  General ref log reading improvements.
  Fix ref log parsing so it works properly.
  Support 'master@2 hours ago' syntax
  Log ref updates to logs/refs/<ref>
  Convert update-ref to use ref_lock API.
  Improve abstraction of ref lock/write.

http-fetch.c

@@ -1223,6 +1223,7 @@ int main(int argc, char **argv)
 	int rc = 0;
 
 	setup_git_directory();
+	git_config(git_default_config);
 
 	while (arg < argc && argv[arg][0] == '-') {
 		if (argv[arg][1] == 't') {
@@ -1249,6 +1250,7 @@ int main(int argc, char **argv)
 	}
 	commit_id = argv[arg];
 	url = argv[arg + 1];
+	write_ref_log_details = url;
 
 	http_init();