wrapper.c: make warn_on_inaccessible() static

After the last patch, this function is not used outside anymore. Keep it
static.
Noticed-by: NRamsay Jones <ramsay@ramsayjones.plus.com>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

git-compat-util.h

@@ -1100,8 +1100,6 @@ int remove_or_warn(unsigned int mode, const char *path);
 int access_or_warn(const char *path, int mode, unsigned flag);
 int access_or_die(const char *path, int mode, unsigned flag);
 
-/* Warn on an inaccessible file that ought to be accessible */
-void warn_on_inaccessible(const char *path);
 /* Warn on an inaccessible file if errno indicates this is an error */
 int warn_on_fopen_errors(const char *path);
 

wrapper.c

@@ -418,6 +418,11 @@ FILE *fopen_for_writing(const char *path)
 	return ret;
 }
 
+static void warn_on_inaccessible(const char *path)
+{
+	warning_errno(_("unable to access '%s'"), path);
+}
+
 int warn_on_fopen_errors(const char *path)
 {
 	if (errno != ENOENT && errno != ENOTDIR) {
@@ -597,11 +602,6 @@ int remove_or_warn(unsigned int mode, const char *file)
 	return S_ISGITLINK(mode) ? rmdir_or_warn(file) : unlink_or_warn(file);
 }
 
-void warn_on_inaccessible(const char *path)
-{
-	warning_errno(_("unable to access '%s'"), path);
-}
-
 static int access_error_is_ok(int err, unsigned flag)
 {
 	return err == ENOENT || err == ENOTDIR ||