This TECO macro makes a TECO command string printable by converting
escape characters to dollar signs and all control characters to the
tilde-character string which is usually printed on the terminal, except
for ^I (tab), ^M (cr), ^L (ff), and ^J (lf).

<z-."e1;'0a-31"gcf<'0a-9"ecf<'0a-10"ecf<'0a-12"ecf<'0a-13"ecf<'0a-27"ei$df<'i^0a+64id>