refs.c: Write reflogs for notes just like for branch heads

The notes code intends to write reflog entries, but currently they are
not written because log_ref_write() checks for the refname path
explicitly.

Add refs/notes to the list of allowed paths so that notes references are
treated just like branch heads, i.e. according to core.logAllRefUpdates
and core.bare.

Signed-off-by: Michael J Gruber <git@drmicha.warpmail.net>
Acked-by: Johan Herland <johan@herland.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

refs.c

diff --git a/refs.c b/refs.c
index 0f24c8d..d3db15a 100644
--- a/refs.c
+++ b/refs.c
@@ -1276,6 +1276,7 @@
 	if (log_all_ref_updates &&
 	    (!prefixcmp(ref_name, "refs/heads/") ||
 	     !prefixcmp(ref_name, "refs/remotes/") ||
+	     !prefixcmp(ref_name, "refs/notes/") ||
 	     !strcmp(ref_name, "HEAD"))) {
 		if (safe_create_leading_directories(log_file) < 0)
 			return error("unable to create directory for %s",

t/t3301-notes.sh

diff --git a/t/t3301-notes.sh b/t/t3301-notes.sh
index 5410a6d..b2e7b07 100755
--- a/t/t3301-notes.sh
+++ b/t/t3301-notes.sh
@@ -69,7 +69,7 @@
 d423f8c refs/notes/commits@{0}: notes: Notes added by 'git notes add'
 EOF
 
-test_expect_failure 'create reflog entry' '
+test_expect_success 'create reflog entry' '
 	git reflog show refs/notes/commits >output &&
 	test_cmp expect output
 '