Fix merging bug where downstream items somtimes got ignored if they appear after an upstream-only item. Also, reduce the severity of the validation error if a tech-domain is not recognised on a non-Foundation package.
#!/usr/bin/env python
"A script for invoking coverage from the command line."
import sys
del sys.path[0] # Otherwise "import coverage" finds this file!
import coverage
coverage.the_coverage.command_line(sys.argv[1:])