RFR: Runner: if -Djmh.ignoreLock=true then skip jmh.lock creation

Wed Oct 21 08:16:21 UTC 2020

When -Djmh.ignoreLock=true JMH anyway will try to create the jmh.lock file and if it fails it will write a warning for
an user. This may be not a best way for several reasons:
1. If user specified ignoreLock then he already knows what she or he doing.
2. If the Benchmark is started from IDE i.e idea-jmh-plugin and the ignoreLock was added automatically then users may
be confused by this warning 3. It makes execution slightly longer when we anyway trying to create the jmh.lock file
4. This simplifies logic

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Commit messages:
 - Runner: if -Djmh.ignoreLock=true then skip jmh.lock creation

Changes: https://git.openjdk.java.net/jmh/pull/6/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jmh&pr=6&range=00
  Stats: 14 lines in 1 file changed: 3 ins; 9 del; 2 mod
  Patch: https://git.openjdk.java.net/jmh/pull/6.diff
  Fetch: git fetch https://git.openjdk.java.net/jmh pull/6/head:pull/6

PR: https://git.openjdk.java.net/jmh/pull/6