added -v to manpage

slstatus.1

@@ -3,7 +3,7 @@
 slstatus \- suckless status
 .SH SYNOPSIS
 .B slstatus
-.RB [ \-dho ]
+.RB [ \-dhov ]
 .SH DESCRIPTION
 slstatus is a suckless and lightweight status monitor for window managers that use WM_NAME as statusbar (e.g. DWM). It is written in pure C without any system calls and only reads from files most of the time. It is meant to be a better alternative to Bash scripts (inefficient) and Conky (bloated for this use).
 .SH OPTIONS