dcgen cleanup.

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 2004-07-28  Paul Eggert  <eggert@cs.ucla.edu>
 
+       * src/dcgen: Remove comments, trailing white space, and empty
+       lines from the output strings, to save space.
+       Use a narrower type like 'unsigned char' for line lengths, if
+       that will do.
+       Make the output variables static, not extern.
+
        * src/chgrp.c (parse_group): Require base 10 when parsing
        groups as integers.
        (main): int -> bool when appropriate.