The Fix CL ENDDO command adds a comment to the ENDDO commands in CL source that
matches the expression such as (&A *EQ &B) of the corresponding IF command.
MONMSG commands with EXEC(DO) are handled in a similar manner with the message
ID added as a comment to the corresponding ENDDO. One, generic, or all CL and
CLLE source members in a source file may be specified.