Add man-refs.ent entries for:
 - iconv(3)
 - iconv_close(3)
 - iconv_open(3)
 - iconv_open_into(3)
 - iconvctl(3)
 - iconvlist(3)

Sponsored by:	The FreeBSD Foundation


git-svn-id: svn+ssh://svn.freebsd.org/doc/head@45501 c2e8774f-c49f-e111-b436-862b2bbc8956