ext4: Drop whitespace at end of lines

This patch was generated using:

#!/usr/bin/perl -i
while (<>) {
    s/[ 	]+$//;
    print;
}

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
diff --git a/fs/ext4/fsync.c b/fs/ext4/fsync.c
index 42bd94a..6ca7b6e 100644
--- a/fs/ext4/fsync.c
+++ b/fs/ext4/fsync.c
@@ -66,7 +66,7 @@
 	ret = flush_completed_IO(inode);
 	if (ret < 0)
 		return ret;
-	
+
 	if (!journal)
 		return simple_fsync(file, dentry, datasync);