ext4: Cleanup whitespace and other miscellaneous style issues

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>

diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c
index f7529e2..612c3d2 100644
--- a/fs/ext4/extents.c
+++ b/fs/ext4/extents.c
@@ -1441,7 +1441,7 @@
 
 	/*
 	 * get the next allocated block if the extent in the path
-	 * is before the requested block(s) 
+	 * is before the requested block(s)
 	 */
 	if (b2 < b1) {
 		b2 = ext4_ext_next_allocated_block(path);