Library /sys$common/syshlp/HELPLIB.HLB
UIL, Compile Time Errors, SINGLE_LETTER
 *Conan The Librarian 

  ERROR:  The string associated with each color in a color table  must
  hold exactly one character.  You have specified a string with either
  fewer or more characters.

  USER ACTION:  Use a string exactly one character in length.
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