I don't think this is relevant.
Index: ksh.1 =================================================================== RCS file: /cvs/src/bin/ksh/ksh.1,v retrieving revision 1.195 diff -u -p -r1.195 ksh.1 --- ksh.1 30 Aug 2017 17:08:45 -0000 1.195 +++ ksh.1 30 Aug 2017 17:23:59 -0000 @@ -1535,9 +1535,6 @@ sequences (such as escape codes) by usin substitution (see below) or by prefixing your prompt with a non-printing character (such as control-A) followed by a carriage return and then delimiting the escape codes with this non-printing character. -By the way, don't blame me for -this hack; it's in the original -.Nm . .Pp The default prompt is .Sq $\ \& -- jca | PGP : 0x1524E7EE / 5135 92C1 AD36 5293 2BDF DDCC 0DFA 74AE 1524 E7EE
