[PATCH] difftool.c: mark a file-local symbol with static

Signed-off-by: Ramsay Jones <redacted>
---

Hi Johannes,

If you need to re-roll your 'js/difftool-builtin' branch, could
you please squash this into the relevant patch.

Thanks!

Also, due to a problem in my config.mak file on Linux (a commented
out line that had a line continuation '\', grrrrr!), gcc issued a
warning, thus:

  builtin/difftool.c: In function ‘run_dir_diff’:
  builtin/difftool.c:568:13: warning: zero-length gnu_printf format string [-Wformat-zero-length]
       warning("");
               ^
I am not sure why -Wno-format-zero-length is set in DEVELOPER_CFLAGS,
but do you really need to space the output with an an 'empty'
"warning:" line? (Just curious).

ATB,
Ramsay Jones

 builtin/difftool.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/builtin/difftool.c b/builtin/difftool.c
index 3480920..830369c 100644
--- a/builtin/difftool.c
+++ b/builtin/difftool.c

@@ -170,7 +170,7 @@ struct path_entry {
 	char path[FLEX_ARRAY];
 };
 
-int path_entry_cmp(struct path_entry *a, struct path_entry *b, void *key)
+static int path_entry_cmp(struct path_entry *a, struct path_entry *b, void *key)
 {
 	return strcmp(a->path, key ? key : b->path);
 }

-- 
2.9.0