Allow `JAVA_HOME` in formulae depending on `openjdk`.
Allow `JAVA_HOME` in formulae depending on `openjdk`.

sjackman/homebrew,reitermarkus/brew,mahori/brew,mahori/brew,JCount/brew,konqui/brew,vitorgalvao/brew,sjackman/homebrew,claui/brew,nandub/brew,reitermarkus/brew,konqui/brew,sjackman/homebrew,vitorgalvao/brew,mahori/brew,reitermarkus/brew,sjackman/homebrew,nandub/brew,claui/brew,EricFromCanada/brew,MikeMcQuaid/brew,nandub/brew,claui/brew,nandub/brew,Homebrew/brew,Homebrew/brew,MikeMcQuaid/brew,EricFromCanada/brew,JCount/brew,MikeMcQuaid/brew,MikeMcQuaid/brew,JCount/brew,EricFromCanada/brew,vitorgalvao/brew,claui/brew,Homebrew/brew,JCount/brew,Homebrew/brew,konqui/brew,EricFromCanada/brew,vitorgalvao/brew,reitermarkus/brew,konqui/brew,mahori/brew