Silence Command Line in TAP::Harness?

[David E. Wheeler]

Howdy,

When I run the pgTAP tests through pg_prove, which uses TAP::Harness,  
it looks like this:

    % pg_prove -d try sql/*.sql
    psql --dbname try --no-psqlrc --no-align --tuples-only --pset  
pager= --pset null=[NULL] --set ON_ERROR_ROLLBACK=1 --set  
ON_ERROR_STOP=1 --set QUIET=1 --file
    sql/coltap.....ok
    sql/hastap.....ok
    sql/moretap....ok
    sql/pg73.......ok
    sql/pktap......ok
    All tests successful.
    Files=5, Tests=216,  1 wallclock secs ( 0.06 usr  0.02 sys +   
0.08 cusr  0.07 csys =  0.23 CPU)
    Result: PASS

Is there some way to eliminate that noisy line that shows the command  
that will be run?

Thanks,

David