ENG-5956 sqlcmd error handling improvements
Merge branch 'master' into ENG-5956-sqlcmd-stop-on-error
Merge branch 'master' into ENG-5956-sqlcmd-stop-on-error-reviewed
minor cleanup re: r=cwolff + general core team design review
Merge pull request #1805 from VoltDB/ENG-5956-sqlcmd-stop-on-error-reviewed

Eng 5956 sqlcmd stop on error reviewed