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

*** 10,19 ****
--- 10,20 ----
  #
  
  #
  # Copyright 2011, Richard Lowe
  # Copyright 2013 Nexenta Systems, Inc.  All rights reserved.
+ # Copyright 2020 Joyent, Inc.
  #
  
  include         $(SRC)/Makefile.master
  
  MANSECT=        3lib
*** 55,72 ****
--- 56,75 ----
                  libkrb5.3lib            \
                  libkstat.3lib           \
                  libkvm.3lib             \
                  libl.3lib               \
                  liblgrp.3lib            \
+                 libm.3lib               \
                  libmail.3lib            \
                  libmalloc.3lib          \
                  libmapmalloc.3lib       \
                  libmd.3lib              \
                  libmd5.3lib             \
                  libmenu.3lib            \
                  libmp.3lib              \
                  libmtmalloc.3lib        \
+                 libmvec.3lib            \
                  libnls.3lib             \
                  libnsl.3lib             \
                  libnvpair.3lib          \
                  libpam.3lib             \
                  libpanel.3lib           \