tests: optimize tests on primary/prefix mismatch for speed
* tests/primary-prefix-invalid-couples.test: Partial rewrite, in
order to use just a single automake invocation rather than one
invocation for each invalid primary/prefix couple. This improves
the test script execution time by an order of magnitude.
Since we are at it, throw in some other improvements to avoid
unrelated automake warnings and failures that could potentially
cause false positives w.r.t. the automake exit status.
projects / thirdparty / automake.git / commit
