Integrate perlio:
Jarkko Hietaniemi [Fri, 7 Jun 2002 13:14:44 +0000 (13:14 +0000)]
[ 17053]
Don't discard read data on flush if seek fails.
p4raw-link: @17053 on //depot/perlio: ba5c3fe9c7fca842d972e373ee61c7a07bd44bb4

p4raw-id: //depot/perl@17056


Trivial merge