Integrate:

Integrate:
[ 19033]
file test operators weren't doing the right thing if the SV
passed to them wasn't NUL-terminated

[ 19034]
ensure SVs returned by Win32::Get{Short,Full}PathName() are
NUL-terminated
p4raw-link: @19034 on //depot/maint-5.6/perl: d453a28c5f70420dd114c2f0f61ec1aaf34109e0
p4raw-link: @19033 on //depot/maint-5.6/perl: 1ad7974d3a92321c870ce2bd5ce4e57098b51c10

p4raw-id: //depot/perl@19036
p4raw-integrated: from //depot/maint-5.6/perl@19028 'merge in' doio.c
	(@16333..) win32/win32.c (@18377..)