RFR: 2249: serviceability mailing list should be notified of changes to heapdumper and diagnostic files

[Zhao Song]

The serviceability mailing list should be notified of changes to the following files:

src/hotspot/share/services/heapDumper.cpp
src/hotspot/share/services/heapDumper.hpp
src/hotspot/share/services/heapDumperCompression.cpp
src/hotspot/share/services/heapDumperCompression.hpp
src/hotspot/share/services/diagnosticArgument.cpp
src/hotspot/share/services/diagnosticArgument.hpp
src/hotspot/share/services/diagnosticCommand.cpp
src/hotspot/share/services/diagnosticCommand.hpp
src/hotspot/share/services/diagnosticFramework.cpp
src/hotspot/share/services/diagnosticFramework.hpp

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Commit messages:
 - SKARA-2249

Changes: https://git.openjdk.org/skara/pull/1646/files
  Webrev: https://webrevs.openjdk.org/?repo=skara&pr=1646&range=00
  Issue: https://bugs.openjdk.org/browse/SKARA-2249
  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/skara/pull/1646.diff
  Fetch: git fetch https://git.openjdk.org/skara.git pull/1646/head:pull/1646

PR: https://git.openjdk.org/skara/pull/1646