Integrate perlio:
Jarkko Hietaniemi [Sun, 18 Mar 2001 04:21:17 +0000 (04:21 +0000)]
[  9190]
Correct #if EBCDIC side typos.
Builds and passes many tests on OS390.

p4raw-link: @9190 on //depot/perlio: 753838417b30f18133bff09e0b7fa58f5a0db60a

p4raw-id: //depot/perl@9191


Trivial merge