4201 fopen(3c): The w mode should be bold, not underlined

*** 129,145 ****
  When opened, a stream is fully buffered if and only if it can be determined not
  to refer to an interactive device. The error and end-of-file indicators for the
  stream are cleared.
  .sp
  .LP
! If \fImode\fR begins with \fIw\fR or \fBa\fR and the file did not previously
  exist, upon successful completion, \fBfopen()\fR function will mark for update
  the \fBst_atime\fR, \fBst_ctime\fR and \fBst_mtime\fR fields of the file and
  the \fBst_ctime\fR and \fBst_mtime\fR fields of the parent directory.
  .sp
  .LP
! If \fImode\fR begins with \fIw\fR and the file did previously exist, upon
  successful completion, \fBfopen()\fR will mark for update the \fBst_ctime\fR
  and \fBst_mtime\fR fields of the file.  The \fBfopen()\fR function will
  allocate a file descriptor as \fBopen\fR(2) does.
  .sp
  .LP
--- 129,145 ----
  When opened, a stream is fully buffered if and only if it can be determined not
  to refer to an interactive device. The error and end-of-file indicators for the
  stream are cleared.
  .sp
  .LP
! If \fImode\fR begins with \fBw\fR or \fBa\fR and the file did not previously
  exist, upon successful completion, \fBfopen()\fR function will mark for update
  the \fBst_atime\fR, \fBst_ctime\fR and \fBst_mtime\fR fields of the file and
  the \fBst_ctime\fR and \fBst_mtime\fR fields of the parent directory.
  .sp
  .LP
! If \fImode\fR begins with \fBw\fR and the file did previously exist, upon
  successful completion, \fBfopen()\fR will mark for update the \fBst_ctime\fR
  and \fBst_mtime\fR fields of the file.  The \fBfopen()\fR function will
  allocate a file descriptor as \fBopen\fR(2) does.
  .sp
  .LP