Thank you to Anthony Sottile for guidance here.

Can now add --quiet to the scripts like
.git/hooks/pre-commit to run in quiet mode.

Downside is delay output on failed hooks

Adding a new summary line if all hooks passed
or were skipped in either --quiet mode (where
it may be the only output) or --verbose mode
(since the summary seems worth showing here).

This reverts commit 5c1a749.

Feedback from Anthony Sottile was to focus on the skipped
messages only for now.

e.g.

$ SKIP=mypy pre-commit run --files pre_commit/*.py
Trim Trailing Whitespace.................................................Passed
Fix End of Files.........................................................Passed
Check docstring is first.................................................Passed
Check JSON...........................................(no files to check)Skipped
Check Yaml...........................................(no files to check)Skipped
Debug Statements (Python)................................................Passed
Tests should end in _test.py.........................(no files to check)Skipped
Fix requirements.txt.................................(no files to check)Skipped
Fix double quoted strings................................................Passed
flake8...................................................................Passed
autopep8.................................................................Passed
Validate Pre-Commit Manifest.........................(no files to check)Skipped
pyupgrade................................................................Passed
Reorder python imports...................................................Passed
Add trailing commas......................................................Passed
setup-cfg-fmt........................................(no files to check)Skipped
mypy....................................................................Skipped
Check hooks apply to the repository..................(no files to check)Skipped
Check for useless excludes...........................(no files to check)Skipped

Versus:

$ SKIP=mypy pre-commit run --files pre_commit/*.py -q
Trim Trailing Whitespace.................................................Passed
Fix End of Files.........................................................Passed
Check docstring is first.................................................Passed
Debug Statements (Python)................................................Passed
Fix double quoted strings................................................Passed
flake8...................................................................Passed
autopep8.................................................................Passed
pyupgrade................................................................Passed
Reorder python imports...................................................Passed
Add trailing commas......................................................Passed
mypy....................................................................Skipped

Here we still show mypy which the user had said to skip.

Placed next to verbose due to logical connection.
This is not part of a public API so the change
should not matter - the tests all seem to pass
arguments by name anyway.