Fix typo in Assert's javadoc (#1507)
Fix typo in Assert's javadoc (#1507)


xasx/assertj-core,assertj/assertj-core,joel-costigliola/assertj-core,xasx/assertj-core,joel-costigliola/assertj-core,hazendaz/assertj-core,hazendaz/assertj-core,assertj/assertj-core