nilfs2: add missing line spacing

Clean up checkpatch.pl warnings "WARNING: Missing a blank line after
declarations" from nilfs2.

Link: http://lkml.kernel.org/r/1461935747-10380-11-git-send-email-konishi.ryusuke@lab.ntt.co.jp
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

fs/nilfs2/dir.c

@@ -74,6 +74,7 @@ static unsigned nilfs_last_byte(struct inode *inode, unsigned long page_nr)
 static int nilfs_prepare_chunk(struct page *page, unsigned from, unsigned to)
 {
 	loff_t pos = page_offset(page) + from;
+
 	return __block_write_begin(page, pos, to - from, nilfs_get_block);
 }
 
@@ -336,6 +337,7 @@ nilfs_find_entry(struct inode *dir, const struct qstr *qstr,
 	n = start;
 	do {
 		char *kaddr;
+
 		page = nilfs_get_page(dir, n);
 		if (!IS_ERR(page)) {
 			kaddr = page_address(page);