Fio 1.21-rc1

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
diff --git a/init.c b/init.c
index 3469584..70078aa 100644
--- a/init.c
+++ b/init.c
@@ -19,7 +19,7 @@
 #include "smalloc.h"
 #include "filehash.h"
 
-static char fio_version_string[] = "fio 1.20";
+static char fio_version_string[] = "fio 1.21-rc1";
 
 #define FIO_RANDSEED		(0xb1899bedUL)