Update perltest.pl to add /u when /W is in the test.


git-svn-id: svn://vcs.exim.org/pcre/code/trunk@1385 2f5784b3-3f2a-0410-8824-cb99058d5e15
A test that was in test 4 should have been in test 5.


git-svn-id: svn://vcs.exim.org/pcre/code/trunk@1386 2f5784b3-3f2a-0410-8824-cb99058d5e15