Cleanup verify headers

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
diff --git a/verify.c b/verify.c
index 6de0b88..2ae74b9 100644
--- a/verify.c
+++ b/verify.c
@@ -7,6 +7,7 @@
 #include <assert.h>
 
 #include "fio.h"
+#include "verify.h"
 
 #include "crc/md5.h"
 #include "crc/crc64.h"