tests: tidy up reporting of skipped tests if not verbose: - print 's' rather than '.' - pass skipped test reports back to parent for -j - report which tests were skipped at the end - print '.' after test completion

#!/bin/sh

hg init

echo "Is there an error message when trying to diff non-existing files?"
hg diff not found

echo "Is there an error message when trying to add non-existing files?"
hg add not found