release notes: mention ElektraInitiative#1973

doc/news/_preparation_next_release.md

@@ -232,6 +232,7 @@ you up to date with the multi-language support provided by Elektra.
 - Added many storage plugin tests. Most tests use the keyset, key name and value APIs.
   Currently, the tests are only active for `dump` and `mmapstorage`. *(Mihael Pranjić)*
 - The test `testcpp_contextual_basic` now compiles without warnings, if we use Clang 7 as compiler. *(René Schwaiger)*
+- crypto, fcrypt and gpgme properly shut down the gpg-agent after the unit test is done. See #1973 . *(Peter Nirschl)*
 
 [Markdown Shell Recorder]: https://master.libelektra.org/tests/shell/shell_recorder/tutorial_wrapper