12346 need libm(3LIB) and libmvec(3LIB) manpages

*** 10,19 ****
--- 10,20 ----
  #
  
  #
  # Copyright 2011, Richard Lowe
  # Copyright 2012 Nexenta Systems, Inc. All rights reserved.
+ # Copyright 2020 Joyent, Inc.
  #
  
  file path=usr/share/man/man3lib/libadm.3lib
  file path=usr/share/man/man3lib/libaio.3lib
  file path=usr/share/man/man3lib/libavl.3lib
*** 41,58 ****
--- 42,61 ----
  file path=usr/share/man/man3lib/libkmf.3lib
  file path=usr/share/man/man3lib/libkstat.3lib
  file path=usr/share/man/man3lib/libkvm.3lib
  file path=usr/share/man/man3lib/libl.3lib
  file path=usr/share/man/man3lib/liblgrp.3lib
+ file path=usr/share/man/man3lib/libm.3lib
  file path=usr/share/man/man3lib/libmail.3lib
  file path=usr/share/man/man3lib/libmalloc.3lib
  file path=usr/share/man/man3lib/libmapmalloc.3lib
  file path=usr/share/man/man3lib/libmd.3lib
  file path=usr/share/man/man3lib/libmd5.3lib
  file path=usr/share/man/man3lib/libmenu.3lib
  file path=usr/share/man/man3lib/libmp.3lib
  file path=usr/share/man/man3lib/libmtmalloc.3lib
+ file path=usr/share/man/man3lib/libmvec.3lib
  file path=usr/share/man/man3lib/libnls.3lib
  file path=usr/share/man/man3lib/libnsl.3lib
  file path=usr/share/man/man3lib/libnvpair.3lib
  file path=usr/share/man/man3lib/libpam.3lib
  file path=usr/share/man/man3lib/libpanel.3lib