From the old X.Org/X Consortium bug records - unfortunately, the patch is
incomplete in my copy, so someone will have to recreate the missing parts.
[An excellent starter project for someone wanting to get started working on
 X code.]

 Date: Tue, 06 Sep 94 12:18:52 -0400
 From: "Cliff Straw" <straw@zk3.dec.com>
 Subject: xmodmap: Add "-pme" option to print modifier map as expressions
 
 ### bug number:   7058
 ### area:         xmodmap
 ### severity:     enhancement
 ### priority:     low
 ### comments:     
 
      VERSION:
 
 R6, public-patch-1
 
      CLIENT MACHINE and OPERATING SYSTEM:
 
 DEC 3000 Model 500
 
      DISPLAY TYPE:
 
 8-bit framebuffer
 
      WINDOW MANAGER:
 
 ctwm
 
      COMPILER:
 
 native ANSI cc
 
      AREA:
 
 ./programs/xmodmap
 
      SYNOPSIS:
 
 Add "-pme" option to print modifier map as expressions.
 
      DESCRIPTION:
 
 Add "-pme" option to print the modifier map as expressions.  This
 outputs the modifier map in a format that can be read by xmodmap.
 
      REPEAT BY:
 
 After applying the fix, invoke "xmodmap -pme"