[PATCH] mount: fix Linux build

[Baruch Siach]

Commit 128543721 (Fixes for FreeBSD build) broke build of mount and umount for
Linux as follows:

util-linux/lib.a(mount.o): In function `mount_main':
mount.c:(.text.mount_main+0x418): undefined reference to `match_fstype'
util-linux/lib.a(umount.o): In function `umount_main':
umount.c:(.text.umount_main+0xf4): undefined reference to `match_fstype'

Fix this by moving '#ifdef HAVE_MNTENT_H' after '#include "libbb.h"'.

Signed-off-by: Baruch Siach <baruch at tkos.co.il>
---
 libbb/match_fstype.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/libbb/match_fstype.c b/libbb/match_fstype.c
index c792d13..32c3d7f 100644
--- a/libbb/match_fstype.c
+++ b/libbb/match_fstype.c
@@ -10,10 +10,10 @@
  * Licensed under GPLv2 or later, see file LICENSE in this source tree.
  */
 
-#ifdef HAVE_MNTENT_H
-
 #include "libbb.h"
 
+#ifdef HAVE_MNTENT_H
+
 int FAST_FUNC match_fstype(const struct mntent *mt, const char *t_fstype)
 {
 	int match = 1;
-- 
1.7.5.4