[Maria-developers] Fix for 2 failing tests on Windows

Hello, Some tests that call mtr.add_suppression to ignore expected warnings hard-code the forward slash '/' character as the expected path delimiter. This breaks tests on Windows as the regex does not match as expected. E.g. Recovering table: './mysqltest/t_corrupted2' fails to match 100123 23:48:26 [Warning] Recovering table: '.\mysqltest\t_corrupted2' and hence the test fails spuriously. Attached is a simple patch that fixes this issue while maintaining compatibility with other platforms. Let me know what you think. - Alex PS. From the Windows buildbot test logs[1], only these two tests are observed to fail in this way. [1] http://askmonty.org/buildbot/builders/win32-tarball/builds/238/steps/test/lo...