btrfs: fix message printing

Fix various messages to include newline and module prefix.

Signed-off-by: Daniel J Blueman <daniel@quora.org>
diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c
index f8b803f..0fadcdb 100644
--- a/fs/btrfs/super.c
+++ b/fs/btrfs/super.c
@@ -243,7 +243,7 @@
 			       struct btrfs_root *root, const char *function,
 			       unsigned int line, int errno)
 {
-	WARN_ONCE(1, KERN_DEBUG "btrfs: Transaction aborted");
+	WARN_ONCE(1, KERN_DEBUG "btrfs: Transaction aborted\n");
 	trans->aborted = errno;
 	/* Nothing used. The other threads that have joined this
 	 * transaction may be able to continue. */
@@ -549,11 +549,11 @@
 			btrfs_set_opt(info->mount_opt, ENOSPC_DEBUG);
 			break;
 		case Opt_defrag:
-			printk(KERN_INFO "btrfs: enabling auto defrag");
+			printk(KERN_INFO "btrfs: enabling auto defrag\n");
 			btrfs_set_opt(info->mount_opt, AUTO_DEFRAG);
 			break;
 		case Opt_recovery:
-			printk(KERN_INFO "btrfs: enabling auto recovery");
+			printk(KERN_INFO "btrfs: enabling auto recovery\n");
 			btrfs_set_opt(info->mount_opt, RECOVERY);
 			break;
 		case Opt_skip_balance:
@@ -1602,7 +1602,7 @@
 static void btrfs_interface_exit(void)
 {
 	if (misc_deregister(&btrfs_misc) < 0)
-		printk(KERN_INFO "misc_deregister failed for control device");
+		printk(KERN_INFO "btrfs: misc_deregister failed for control device\n");
 }
 
 static int __init init_btrfs_fs(void)