RFR JDK-8015728: (zipfs) demo/zipfs/basic.sh failing

[Xueming Shen]

Hi,

Please help review the proposed change to fix the regression triggered
by the change for #6303183, in which the change failed to update the
written loc entry size correctly when the "NTFS" timestamp is used on
Windows platform (return size at line#2200 is not updated accordingly)

http://cr.openjdk.java.net/~sherman/6303183/webrev/src/share/demo/nio/zipfs/src/com/sun/nio/zipfs/ZipFileSystem.java.sdiff.html

The webrev is below

http://cr.openjdk.java.net/~sherman/8015728/webrev/

The test now passes locally. I'm running the jprt to verify.

Thanks,
-Sherman