Some lines which only contained tabs got clobbered in a whitespace
cleanup. Those lines were asking for trouble anyway; instead, use
\h'8n', which won't get caught in the same way, makes more space, and is
consistent with other manpages in the package.
.RB [ \-o
.IR output ]
.RI [ file
.RB [ \-o
.IR output ]
.RI [ file
.RB [ \-F
.IR format ]
.br
.RB [ \-F
.IR format ]
.br
.RB [ \-m
.IR file ]
.RB [ \-o
.RB [ \-m
.IR file ]
.RB [ \-o
.RB [ \-g
.IR generator ]
.br
.RB [ \-g
.IR generator ]
.br
.RB [ \-n
.IR count ]
.RB [ \-r
.RB [ \-n
.IR count ]
.RB [ \-r