[PATCH v2] Fix error caused by missing parameter name

[Kian Kasad <kian@kasad.com>]

This fixes an error which was introduced by
2f50b47c72cbc4270bbd12ae7f520486d5f42736. Git added a new argument to
config_fn_t, and it was added to gitconfig_config(), but not named. This
causes compile warnings/errors. This commit fixes that by naming the new
parameter, and marking it unused.

---

The attribute used here is specific to GCC and Clang, but we're already
using non-standard features like the memrchr() function, so this seems
like it isn't a problem.

 scan-tree.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/scan-tree.c b/scan-tree.c
index 84da86e..8858b74 100644
--- a/scan-tree.c
+++ b/scan-tree.c
@@ -54,7 +54,8 @@ static void scan_tree_repo_config(const char *name, const char *value)
 	config_fn(repo, name, value);
 }
 
-static int gitconfig_config(const char *key, const char *value, const struct config_context *, void *cb)
+static int gitconfig_config(const char *key, const char *value,
+		const __attribute__((unused)) struct config_context *ctx, void *cb)
 {
 	const char *name;
 
-- 
2.46.0