Fix test after Palaso update
Fix test after Palaso update

Palaso added language xyk.  We intend to test an invalid code, so use xy3.

StephenMcConnel/BloomDesktop,BloomBooks/BloomDesktop,StephenMcConnel/BloomDesktop,andrew-polk/BloomDesktop,StephenMcConnel/BloomDesktop,JohnThomson/BloomDesktop,andrew-polk/BloomDesktop,andrew-polk/BloomDesktop,BloomBooks/BloomDesktop,BloomBooks/BloomDesktop,JohnThomson/BloomDesktop,gmartin7/myBloomFork,andrew-polk/BloomDesktop,StephenMcConnel/BloomDesktop,andrew-polk/BloomDesktop,JohnThomson/BloomDesktop,StephenMcConnel/BloomDesktop,StephenMcConnel/BloomDesktop,andrew-polk/BloomDesktop,BloomBooks/BloomDesktop,JohnThomson/BloomDesktop,gmartin7/myBloomFork,JohnThomson/BloomDesktop,BloomBooks/BloomDesktop,gmartin7/myBloomFork,gmartin7/myBloomFork,gmartin7/myBloomFork,BloomBooks/BloomDesktop,gmartin7/myBloomFork