11622 clean up rarer mandoc lint warnings

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  .TH WHOIS 1 "Oct 2, 2009"
  .SH NAME
  \fBwhois\fP
  \- Internet domain name and network number directory service
  .SH SYNOPSIS
- .br
  \fBwhois\fP
  [\fB\-aAbfgiIklmQr\fP]
  [\fB\-c\fP \fIcountry-code\fP | \fIFl\fP h \fIhost\fP]
  [\fB\-p\fP \fIport\fP]
  \fIname\fP...
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