[PATCH] Change timeout to runtime and rearrange option entries

Runtime is a more descriptive name - the documentation is updated
as well, however the parsing has added an alias functionality to
support older names as well. So 'timeout' still works.

Also rearrange option entries, now they matter because the --cmdhelp
option will print them in order.

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
diff --git a/README b/README
index 97251d0..2d5d499 100644
--- a/README
+++ b/README
@@ -54,7 +54,7 @@
 
 $ fio
         --output        Write output to file
-        --timeout       Runtime in seconds
+        --runtime       Runtime in seconds
         --latency-log   Generate per-job latency logs
         --bandwidth-log Generate per-job bandwidth logs
         --minimal       Minimal (terse) output
@@ -124,7 +124,7 @@
 			'x' blocks have been written.
 	end_fsync=x	If 'x', run fsync() after end-of-job.
 	startdelay=x	Start this thread x seconds after startup
-	timeout=x	Terminate x seconds after startup. Can include a
+	runtime=x	Terminate x seconds after startup. Can include a
 			normal time suffix if not given in seconds, such as
 			'm' for minutes, 'h' for hours, and 'd' for days.
 	offset=x	Start io at offset x (x string can include k/m/g)