An edit macro USEMYSAY which makes a valiant attempt to convert all the SAY statements in your Rexx into proper calls to mysay
e.g. say 'The value of hlq = ' hlq
becomes
rv=mysay('The value of hlq = ' hlq)
USEMYSAY worked for me against many of my Execs, and against a 35,000-line monster from IBM (ISPDTLC)