Integrate perlio:
Jarkko Hietaniemi [Sun, 12 Nov 2000 20:34:55 +0000 (20:34 +0000)]
[  7656]
Add aTHX_ to Perl_croak's (MULTIPLICITY et. al.)

p4raw-link: @7656 on //depot/perlio: 14aaf8e8d5ef5f7630e198d7ed4c5b1ce477445f

p4raw-id: //depot/perl@7657


Trivial merge