Fio 1.21-rc7

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
diff --git a/init.c b/init.c
index ec515e6..a7d90df 100644
--- a/init.c
+++ b/init.c
@@ -19,7 +19,7 @@
 #include "smalloc.h"
 #include "filehash.h"
 
-static char fio_version_string[] = "fio 1.21-rc6";
+static char fio_version_string[] = "fio 1.21-rc7";
 
 #define FIO_RANDSEED		(0xb1899bedUL)