dmenu.1: group single options

dmenu.1

@@ -3,9 +3,7 @@
 dmenu \- dynamic menu
 .SH SYNOPSIS
 .B dmenu
-.RB [ \-b ]
-.RB [ \-f ]
-.RB [ \-i ]
+.RB [ \-bfiv ]
 .RB [ \-l
 .IR lines ]
 .RB [ \-m
@@ -22,7 +20,6 @@ dmenu \- dynamic menu
 .IR color ]
 .RB [ \-sf
 .IR color ]
-.RB [ \-v ]
 .P
 .BR dmenu_run " ..."
 .SH DESCRIPTION

dmenu.c

@@ -600,8 +600,8 @@ setup(void)
 static void
 usage(void)
 {
-	fputs("usage: dmenu [-b] [-f] [-i] [-l lines] [-p prompt] [-fn font] [-m monitor]\n"
-	      "             [-nb color] [-nf color] [-sb color] [-sf color] [-v]\n", stderr);
+	fputs("usage: dmenu [-bfiv] [-l lines] [-p prompt] [-fn font] [-m monitor]\n"
+	      "             [-nb color] [-nf color] [-sb color] [-sf color]\n", stderr);
 	exit(1);
 }