Put all path conversions in one file
Convert the --tmpdir passed to "mysqld --verbose --help"
mysql-test/lib/My/Find.pm:
Use My::Platform
mysql-test/lib/My/SafeProcess.pm:
use My::Platform
mysql-test/lib/mtr_cases.pm:
Use My::Platform
mysql-test/lib/mtr_misc.pl:
Move 'mtr_native_path' to My::Platform
mysql-test/lib/My/Platform.pm:
New BitKeeper file ``mysql-test/lib/My/Platform.pm''
mysql-test/lib/t/Platform.t:
New BitKeeper file ``mysql-test/lib/t/Platform.t''