correct the module name in the test file (was cut'n'paste leftover)
correct the module name in the test file (was cut'n'paste leftover)

mienaikage/xperl6,mienaikage/exercism-perl6,exercism/xperl6,mienaikage/exercism-perl6,mienaikage/xperl6,mienaikage/exercism-perl6,mienaikage/xperl6,exercism/xperl6,exercism/xperl6