Revision 194568

Add missing passthrough printing entries for VT100 and workalikes
in /etc/termcap:

    VT100 spec indicates that passthrough printing can be enabled
    by sending ESC[5i and disabled by sending ESC[4i These entries
    should be listed as po and pf in /etc/termcap, but are absent.
    See http://www.vt100.net/docs/vt102-ug/chapter5.html#S5.5.2.23

PR:           conf/71549
Submitted by: Andrew Webster <andrew@pubnix.net>