[jdk11u-dev] RFR: 8220410: sun/security/tools/jarsigner/warnings/NoTimestampTest.java failed with missing expected output

[luchenlin]

I backport this for parity with 11.0.21-oracle.

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Commit messages:
 - Backport 3c34b7a2616922dddaf67d5f9e5907f260d302c8

Changes: https://git.openjdk.org/jdk11u-dev/pull/2036/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk11u-dev&pr=2036&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8220410
  Stats: 24 lines in 2 files changed: 16 ins; 3 del; 5 mod
  Patch: https://git.openjdk.org/jdk11u-dev/pull/2036.diff
  Fetch: git fetch https://git.openjdk.org/jdk11u-dev.git pull/2036/head:pull/2036

PR: https://git.openjdk.org/jdk11u-dev/pull/2036