CCA Emacs and DEC VT131 terminals

[gwyn at BRL-VLD.ARPA]

From:      Doug Gwyn (VLD/VMB) <gwyn at BRL-VLD.ARPA>

Since the VT1xx family of terminals use DC3/DC1 flow control, the
terminfo description should contain the entry "xon".  If it does,
and if you properly initialize your terminal when you login (via
"tputs" or equivalent utility), then the fault lies with CCA EMACS
not honoring the flow control protocol (i.e., disabling it).