Fix the compile error on mac for memcheck mode
ENG-5540: add days option to collect command.
ENG-5540 removed print statements
ENG-6893 - Fix deprecation warning in some Pythons re. exception.message.
Merge pull request #1664 from VoltDB/notest-ENG-6893-cli-exception-message

ENG-6893 - Fix deprecation warning in some Pythons re. exception.message...
Merge branch 'master' of github.com:VoltDB/voltdb into fix-mac-memcheck-build-problem
changes according to Paul's review
Merge pull request #1560 from VoltDB/fix-mac-memcheck-build-problem

Fix the compile error on mac for memcheck mode
Merge pull request #1662 from VoltDB/ENG-5540-real

ENG-5540: add days option to collect command.
Merge branch 'master' of github.com:VoltDB/voltdb into ENG-6880-concurrent-access