* java_keystore: add `certificate_path` and `private_key_path` options
* Update DOCUMENTATION and EXAMPLES accordingly.
* Refactor integration tests to play the same tasks twice.
* Add a changelog fragment (minor_changes).
refactor DOCUMENTATION
* Add useful info for better understanding of what options allow
keystore regeneration on the fly, and what other options lead the
module to fail, if their values change.
* Fix indentation and tenses.
* Add myself as author.
* readability-related stuff + changelog fragment
* java_keystore - improve error handling and returned results
* set check_rc=False to return results as documented when module fails
* set LANG, LC_ALL and LC_MESSAGES to C to rely keytool output parsing
* fix pylint's `no-else-return` and `unused-variable` hints
* update related unit tests accordingly
* add a changelog fragment
update unit test (remove stdout_lines from returned dict)
fix unit test: failure is now expected when alias does not exist
* Update changelogs/fragments/2183-java_keystore_improve_error_handling.yml
Co-authored-by: Felix Fontein <felix@fontein.de>
* fix integration test: overwrite keystore at the same location
Co-authored-by: Felix Fontein <felix@fontein.de>