[PATCH] builtin/fsck.c: don't conflate "int" and "enum" in callback

["Ævar Arnfjörð Bjarmason" <avarab@gmail.com>]

Fix a warning on AIX's xlc compiler that's been emitted since my
a1aad71601a (fsck.h: use "enum object_type" instead of "int",
2021-03-28):

    "builtin/fsck.c", line 805.32: 1506-068 (W) Operation between
    types "int(*)(struct object*,enum object_type,void*,struct
    fsck_options*)" and "int(*)(struct object*,int,void*,struct
    fsck_options*)" is not allowed.

I.e. it complains about us assigning a function with a prototype "int"
where we're expecting "enum object_type". Enums are just ints in C,
but it seems xlc is more picky than some about conflating them at the
source level.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
---

This is new in v2.32.0, so sending this during the rc phase, just a
warning though, so unless you're using fatal warnings on that
OS/platform it won't impact anything, and even then it's just a minor
annoyance...

 builtin/fsck.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/builtin/fsck.c b/builtin/fsck.c
index 87a99b0108..b42b6fe21f 100644
--- a/builtin/fsck.c
+++ b/builtin/fsck.c
@@ -109,7 +109,8 @@ static int fsck_error_func(struct fsck_options *o,
 
 static struct object_array pending;
 
-static int mark_object(struct object *obj, int type, void *data, struct fsck_options *options)
+static int mark_object(struct object *obj, enum object_type type,
+		       void *data, struct fsck_options *options)
 {
 	struct object *parent = data;
 
-- 
2.32.0.rc1.460.g26a014da44c