Update spock-report/src/test/groovy/org/spockframework/report/sample/FightOrFlightStory.groovy

No need to place "then" and "when" words: there are automaticaly added
fixed exception message
Merge branch 'patch-1' of github.com:palmplam/spock into palmplam-patch-1
Merge branch 'groovy-1.8' into groovy-1.9