fix bashfoo_source_path set in ensure_location_variables_initialized
quiet_if_success now works with set -e
merge of '7813c0d45f42514c550d1696e5464d494e91ce4b'
     and 'b7a03b468de720c7bb1df9f14bbc3018b69b37ee'
run: remove spurious diagnostics (-x, -v)