* tests/openpgp/Makefile.am (TESTS_ENVIRONMENT): Drop obsolete
variables, add 'srcdir', use absolute paths.
(TESTS): Rename to 'XTESTS' to avoid emitting the automake test
runner. Drop 'setup.scm' and 'finish.scm'.
(xcheck): New target that runs 'run-tests.scm', our Scheme test suite
runner. It will run each test in a clean environment, isolated from
the other tests.
(EXTRA_DIST): Adapt accordingly.
* tests/openpgp/README: Likewise.
Signed-off-by: Justus Winter <justus@g10code.com>