Diomidis Spinellis 46da6c4869 Fix the code to conform to the "or more" part of the following POSIX
specification and regression test regress:25.

  "A function can be preceded by one or more '!' characters, in which
  case the function shall be applied if the addresses do not select
  the pattern space."

MFC after:	2 weeks
2008-11-11 17:15:57 +00:00
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