RFR: 8302226 failure_handler native.core should wait for coredump to finish [v2]

[Ludvig Janiuk]

> Update open/test/failure_handler/src/share/conf/linux.properties to handle core dumps more correctly.

Ludvig Janiuk has updated the pull request incrementally with one additional commit since the last revision:

  add mac

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/12515/files
  - new: https://git.openjdk.org/jdk/pull/12515/files/9c79974a..8f4026f6

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=12515&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=12515&range=00-01

  Stats: 5 lines in 1 file changed: 3 ins; 0 del; 2 mod
  Patch: https://git.openjdk.org/jdk/pull/12515.diff
  Fetch: git fetch https://git.openjdk.org/jdk pull/12515/head:pull/12515

PR: https://git.openjdk.org/jdk/pull/12515