sql_coverage_test.py: Now prints the execution time for each phase, for
each suite, per ENG-6803, using new functions print_seconds &
print_elapsed_seconds, called in various places in the run_config
function, and at the very end (with the totals).
sql_coverage_test.py: Moved final print statements (for total execution
times) to just before the check for “success”, rather than after.
sql_coverage_test.py: clarified the comments for the print_seconds &
print_elapsed_seconds functions, to make it clear that printing the
current time is only for debugging purposes.
sql_coverage_test.py: simplified print_seconds, using datetime.timedelta
(& re.sub), per Phil’s suggestion; also slightly simplified
print_elapsed_seconds, removing the include_current_time argument, since
I don’t expect to ever need it here.
Merge pull request #1644 from VoltDB/ENG-6803-sqlcoverage-execution-time

Eng 6803 sqlcoverage execution time