f2fs: fix coding style

This patch fixes wrong coding style.

Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index 9550135..2a91a7d 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -231,8 +231,9 @@
 
 	/* find first dirty page index */
 	pagevec_init(&pvec, 0);
-	nr_pages = pagevec_lookup_tag(&pvec, mapping, &pgofs, PAGECACHE_TAG_DIRTY, 1);
-	pgofs = nr_pages ? pvec.pages[0]->index: LONG_MAX;
+	nr_pages = pagevec_lookup_tag(&pvec, mapping, &pgofs,
+					PAGECACHE_TAG_DIRTY, 1);
+	pgofs = nr_pages ? pvec.pages[0]->index : LONG_MAX;
 	pagevec_release(&pvec);
 	return pgofs;
 }