btrfs: remove stale newlines from log messages

I've noticed an extra line after "use no compression", but search
revealed much more in messages of more critical levels and rare errors.

Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <clm@fb.com>
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index ddf16bf..bb5b306 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -5932,7 +5932,7 @@
 	refs = btrfs_extent_refs(leaf, ei);
 	if (refs < refs_to_drop) {
 		btrfs_err(info, "trying to drop %d refs but we only have %Lu "
-			  "for bytenr %Lu\n", refs_to_drop, refs, bytenr);
+			  "for bytenr %Lu", refs_to_drop, refs, bytenr);
 		ret = -EINVAL;
 		btrfs_abort_transaction(trans, extent_root, ret);
 		goto out;