[jdk8u-dev] RFR: 8148005: One byte may be corrupted by get_datetime_string()

[Nikita]

The bug has been fixed in jdk9, but it wasn't backported to jdk8u.

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Commit messages:
 - 8148005: One byte may be corrupted by get_datetime_string()

Changes: https://git.openjdk.org/jdk8u-dev/pull/97/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk8u-dev&pr=97&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8148005
  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk8u-dev/pull/97.diff
  Fetch: git fetch https://git.openjdk.org/jdk8u-dev pull/97/head:pull/97

PR: https://git.openjdk.org/jdk8u-dev/pull/97