f2fs: clean checkpatch warnings

Fixed a variety of trivial checkpatch warnings.  The only delta should
be some minor formatting on log strings that were split / too long.

Signed-off-by: Chris Fries <cfries@motorola.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
index bda889e..f5fac16 100644
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -792,7 +792,7 @@
 	int err = 0;
 	struct f2fs_io_info fio = {
 		.type = DATA,
-		.rw = (wbc->sync_mode == WB_SYNC_ALL) ? WRITE_SYNC: WRITE,
+		.rw = (wbc->sync_mode == WB_SYNC_ALL) ? WRITE_SYNC : WRITE,
 	};
 
 	if (page->index < end_index)