Warn the user if chown/fchown fails.

Index: lib/fsm.c
===================================================================
--- lib/fsm.c.orig
+++ lib/fsm.c
@@ -2193,6 +2193,10 @@ if (!(fsm->mapFlags & CPIO_ALL_HARDLINKS
 	break;
     case FSM_CHOWN:
 	rc = chown(fsm->path, st->st_uid, st->st_gid);
+	if (rc < 0 && errno == EPERM) {
+	    rpmMessage(RPMMESS_WARNING, "can't chown %s (%s)\n", fsm->path, strerror(errno));
+	    rc = 0;
+	}
 	if (_fsm_debug && (stage & FSM_SYSCALL))
 	    rpmMessage(RPMMESS_DEBUG, " %8s (%s, %d, %d) %s\n", cur,
 		fsm->path, (int)st->st_uid, (int)st->st_gid,
@@ -2202,6 +2206,10 @@ if (!(fsm->mapFlags & CPIO_ALL_HARDLINKS
     case FSM_LCHOWN:
 #if ! CHOWN_FOLLOWS_SYMLINK
 	rc = lchown(fsm->path, st->st_uid, st->st_gid);
+	if (rc < 0 && errno == EPERM) {
+	    rpmMessage(RPMMESS_WARNING, "can't lchown %s (%s)\n", fsm->path, strerror(errno));
+	    rc = 0;
+	}
 	if (_fsm_debug && (stage & FSM_SYSCALL))
 	    rpmMessage(RPMMESS_DEBUG, " %8s (%s, %d, %d) %s\n", cur,
 		fsm->path, (int)st->st_uid, (int)st->st_gid,