RFR: JDK-8279385: [test] Adjust sun/security/pkcs12/KeytoolOpensslInteropTest.java after 8278344

[Matthias Baesken]

Hello , please review this XXS test adjustment.  After 8278344, it has been commented that better shouldMatch should be used for the adjusted test parsing output of different OpenSSL versions.

-------------

Commit messages:
 - JDK-8279385

Changes: https://git.openjdk.java.net/jdk/pull/6946/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=6946&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8279385
  Stats: 3 lines in 1 file changed: 0 ins; 0 del; 3 mod
  Patch: https://git.openjdk.java.net/jdk/pull/6946.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/6946/head:pull/6946

PR: https://git.openjdk.java.net/jdk/pull/6946