peer_control: annotate feature bitfields as being taken.

Because tal_dup_arr takes, this does too.

Suggested-by: @cdecker
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

lightningd/peer_control.c

@@ -81,7 +81,7 @@ static void copy_to_parent_log(const char *prefix,
 struct peer *new_peer(struct lightningd *ld, u64 dbid,
 		      const struct pubkey *id,
 		      const struct wireaddr_internal *addr,
-		      const u8 *gfeatures, const u8 *lfeatures)
+		      const u8 *gfeatures TAKES, const u8 *lfeatures TAKES)
 {
 	/* We are owned by our channels, and freed manually by destroy_channel */
 	struct peer *peer = tal(NULL, struct peer);

lightningd/peer_control.h

@@ -58,7 +58,7 @@ struct peer *find_peer_by_dbid(struct lightningd *ld, u64 dbid);
 struct peer *new_peer(struct lightningd *ld, u64 dbid,
 		      const struct pubkey *id,
 		      const struct wireaddr_internal *addr,
-		      const u8 *gfeatures, const u8 *lfeatures);
+		      const u8 *gfeatures TAKES, const u8 *lfeatures TAKES);
 
 /* Also removes from db. */
 void delete_peer(struct peer *peer);