refs: move struct pack_refs_opts to where it's used

The declaration of `struct pack_refs_opts` is in a seemingly random
place. Move it so that it's located right next to its flags and
functions that use it.

Signed-off-by: Patrick Steinhardt <[email protected]>
Signed-off-by: Junio C Hamano <[email protected]>

Author: pks-t

refs.h

@@ -66,12 +66,6 @@ const char *ref_storage_format_to_name(unsigned int ref_storage_format);
 #define RESOLVE_REF_NO_RECURSE 0x02
 #define RESOLVE_REF_ALLOW_BAD_NAME 0x04
 
-struct pack_refs_opts {
-	unsigned int flags;
-	struct ref_exclusions *exclusions;
-	struct string_list *includes;
-};
-
 const char *refs_resolve_ref_unsafe(struct ref_store *refs,
 				    const char *refname,
 				    int resolve_flags,
@@ -433,6 +427,12 @@ void warn_dangling_symrefs(FILE *fp, const char *msg_fmt,
 #define PACK_REFS_PRUNE 0x0001
 #define PACK_REFS_ALL   0x0002
 
+struct pack_refs_opts {
+	unsigned int flags;
+	struct ref_exclusions *exclusions;
+	struct string_list *includes;
+};
+
 /*
  * Write a packed-refs file for the current repository.
  * flags: Combination of the above PACK_REFS_* flags.