ext4: remove trailing \n from ext4_warning/ext4_error calls

Messages passed to ext4_warning() or ext4_error() don't need trailing
newlines, because these function add the newlines themselves.

Signed-off-by: Jakub Wilk <jwilk@jwilk.net>
diff --git a/fs/ext4/resize.c b/fs/ext4/resize.c
index 34038e3..cf68100 100644
--- a/fs/ext4/resize.c
+++ b/fs/ext4/resize.c
@@ -41,7 +41,7 @@
 	 */
 	if (EXT4_SB(sb)->s_mount_state & EXT4_ERROR_FS) {
 		ext4_warning(sb, "There are errors in the filesystem, "
-			     "so online resizing is not allowed\n");
+			     "so online resizing is not allowed");
 		return -EPERM;
 	}