VMS-ed version of etags
-----------------------

1. The changes made allow the program to compile correctly,
   to give error messages more meaningful to VMS, to allow '$'
   in identifier tokens in C programs, and to expand wild-cards in the
   input filespecs.

2. To minimize the differences from the original version,
   the VMS filename expansion converts filenames to lower
   case, and strips version numbers. This does indeed mean
   that some input specs (containing version wildcards) will
   cause curious effects, it is reasonably consistent with
   Emacs, which ignores file versions.