fio.1: add section option and remove spurious command text

Signed-off-by: Aaron Carroll <aaronc@gelato.unsw.edu.au>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
diff --git a/fio.1 b/fio.1
index cc86000..ef5c8d8 100644
--- a/fio.1
+++ b/fio.1
@@ -37,6 +37,9 @@
 Specifies when real-time ETA estimate should be printed.  \fIwhen\fR may
 be one of `always', `never' or `auto'.
 .TP
+.BI \-\-section \fR=\fPsec
+Only run section \fIsec\fR from job file.
+.TP
 .BI \-\-cmdhelp \fR=\fPcommand
 Print help information for \fIcommand\fR.  May be `all' for all commands.
 .TP
@@ -45,8 +48,6 @@
 or individual types seperated by a comma (eg --debug=io,file). `help' will
 list all available tracing options.
 .TP
-Print help information for \fIcommand\fR.  May be `all' for all commands.
-.TP
 .B \-\-help
 Display usage information and exit.
 .TP