fix build Solr, failed in https://travis-ci.org/laradock/laradock/jobs/479960032 (#1957)
fix build Solr, failed in https://travis-ci.org/laradock/laradock/jobs/479960032 (#1957)


arkadiusjonczek/laradock,AliveCorpse/laradock,bestlong/laradock,springjk/laradock,bestlong/laradock,hnquang112/laradock,Harmonic/laradock,springjk/laradock,bestlong/laradock,AliveCorpse/laradock,luciano-jr/laradock,Harmonic/laradock,springjk/laradock,arkadiusjonczek/laradock,bestlong/laradock,arkadiusjonczek/laradock,LaraDock/laradock,Harmonic/laradock,bestlong/laradock,jinnawat/laradock,zuohuadong/laradock,Harmonic/laradock,hnquang112/laradock,zuohuadong/laradock,hnquang112/laradock,hnquang112/laradock,jinnawat/laradock,jinnawat/laradock,luciano-jr/laradock,zuohuadong/laradock,springjk/laradock,zuohuadong/laradock,arkadiusjonczek/laradock,jinnawat/laradock