VMS Help CC, Messages, MISSINGCOMMA  *Conan The Librarian (sorry for the slow response - running on an old VAX)

 Message        This parameter is not preceded by a comma.

 Description    The compiler has encountered a parameter specifier
                that is missing a preceding comma.  The parameter
                will be defined anyway, though this may not have been
                what you intended.

 User Action    Correct the formal parameter list so that it consists
                of a comma separated list of identifiers (possibly
                followed by ", ...").