[PATCH] Add default option values

It's handy for the help text, and it also cleans up init.c by removing
a bunch of default option defines.

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
diff --git a/HOWTO b/HOWTO
index 1b34c28..1c8dd4e 100644
--- a/HOWTO
+++ b/HOWTO
@@ -211,6 +211,9 @@
 		For certain types of io the result may still be skewed a bit,
 		since the speed may be different.
 
+randrepeat=bool	For random IO workloads, seed the generator in a predictable
+		way so that results are repeatable across repetitions.
+
 size=siint	The total size of file io for this job. This may describe
 		the size of the single file the job uses, or it may be
 		divided between the number of files in the job. If the