No external users call write_ref_sha1 any more so lets declare it static.

Signed-off-by: Ronnie Sahlberg <sahlb...@google.com>
---
 refs.c | 10 ++++++++--
 refs.h |  3 ---
 2 files changed, 8 insertions(+), 5 deletions(-)

diff --git a/refs.c b/refs.c
index 47575e8..cb56e38 100644
--- a/refs.c
+++ b/refs.c
@@ -2639,6 +2639,9 @@ static int rename_tmp_log(const char *newrefname)
        return 0;
 }
 
+static int write_ref_sha1(struct ref_lock *lock, const unsigned char *sha1,
+                         const char *logmsg);
+
 int rename_ref(const char *oldrefname, const char *newrefname, const char 
*logmsg)
 {
        unsigned char sha1[20], orig_sha1[20];
@@ -2888,8 +2891,11 @@ static int is_branch(const char *refname)
        return !strcmp(refname, "HEAD") || starts_with(refname, "refs/heads/");
 }
 
-/* This function must return a meaningful errno */
-int write_ref_sha1(struct ref_lock *lock,
+/*
+ * Writes sha1 into the ref specified by the lock. Makes sure that errno
+ * is sane on error.
+ */
+static int write_ref_sha1(struct ref_lock *lock,
        const unsigned char *sha1, const char *logmsg)
 {
        static char term = '\n';
diff --git a/refs.h b/refs.h
index e03ab44..da70e63 100644
--- a/refs.h
+++ b/refs.h
@@ -199,9 +199,6 @@ extern int commit_ref(struct ref_lock *lock);
 /** Release any lock taken but not written. **/
 extern void unlock_ref(struct ref_lock *lock);
 
-/** Writes sha1 into the ref specified by the lock. **/
-extern int write_ref_sha1(struct ref_lock *lock, const unsigned char *sha1, 
const char *msg);
-
 /*
  * Setup reflog before using. Set errno to something meaningful on failure.
  */
-- 
2.0.0.282.g3799eda.dirty

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