Clarifies an error message in Katas to explain what is actually wrong. (#11705)
Clarifies an error message in Katas to explain what is actually wrong. (#11705)


apache/beam,apache/beam,robertwb/incubator-beam,chamikaramj/beam,apache/beam,lukecwik/incubator-beam,robertwb/incubator-beam,lukecwik/incubator-beam,chamikaramj/beam,lukecwik/incubator-beam,lukecwik/incubator-beam,chamikaramj/beam,lukecwik/incubator-beam,chamikaramj/beam,robertwb/incubator-beam,chamikaramj/beam,robertwb/incubator-beam,chamikaramj/beam,lukecwik/incubator-beam,apache/beam,robertwb/incubator-beam,apache/beam,robertwb/incubator-beam,apache/beam,chamikaramj/beam,robertwb/incubator-beam,lukecwik/incubator-beam,apache/beam,robertwb/incubator-beam,chamikaramj/beam,robertwb/incubator-beam,iemejia/incubator-beam,iemejia/incubator-beam,robertwb/incubator-beam,apache/beam,lukecwik/incubator-beam,apache/beam,lukecwik/incubator-beam,chamikaramj/beam,lukecwik/incubator-beam,chamikaramj/beam,apache/beam,apache/beam