Confused/incorrect comments in pthread_equal()

[Mark Pizzolato - pthreads - win32]

The comments at the beginning of pthread_equal say:
      * DOCPUBLIC
      *      This function returns nonzero if t1 and t2 are equal, else
      *      returns nonzero
Reasonable readers would be confused by the claim that both returns are
nonzero.
It probably should say:
      * DOCPUBLIC
      *      This function returns nonzero if t1 and t2 are equal, else
      *      returns zero