Integrate perlio:
Jarkko Hietaniemi [Sun, 10 Jun 2001 20:57:20 +0000 (20:57 +0000)]
[ 10504]
Fix (valid) -Wall warnings in perlio.c

p4raw-link: @10504 on //depot/perlio: f7c20d1e66b328169b2a25edeede0115605e777a

p4raw-id: //depot/perl@10506


Trivial merge