UBIFS: remove invalid warn msg with tst_recovery enabled

Signed-off-by: Mats Karrman <mats.karrman@tritech.se>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>

fs/ubifs/debug.c

@@ -2587,10 +2587,11 @@ int dbg_leb_write(struct ubifs_info *c, int lnum, const void *buf,
 		return -EROFS;
 
 	failing = power_cut_emulated(c, lnum, 1);
-	if (failing)
+	if (failing) {
 		len = corrupt_data(c, buf, len);
 		ubifs_warn("actually write %d bytes to LEB %d:%d (the buffer was corrupted)",
 			   len, lnum, offs);
+	}
 	err = ubi_leb_write(c->ubi, lnum, buf, offs, len);
 	if (err)
 		return err;