Fix the st manpage for -l line.

st.1

@@ -41,13 +41,11 @@ st \- simple terminal
 .IR title ]
 .RB [ \-T
 .IR title ]
-.RB [ \-l
-.IR line ]
 .RB [ \-w
 .IR windowid ]
 .RB [ \-v ]
-.RB [ \-l
-.IR line ]
+.RB \-l
+.IR line
 .RI [ stty_args ...]
 .SH DESCRIPTION
 .B st