modify syntax error (#1942)
modify syntax error (#1942)

Syntax error in shell when installing APCU.
Because Fixed shell syntax.
fix #1943, #1940.
luciano-jr/laradock,luciano-jr/laradock,Harmonic/laradock,hnquang112/laradock,jinnawat/laradock,AliveCorpse/laradock,schiggi/laradock,jinnawat/laradock,springjk/laradock,hnquang112/laradock,hnquang112/laradock,jinnawat/laradock,bestlong/laradock,arkadiusjonczek/laradock,bestlong/laradock,jinnawat/laradock,LaraDock/laradock,bestlong/laradock,bestlong/laradock,zuohuadong/laradock,AliveCorpse/laradock,schiggi/laradock,Harmonic/laradock,zuohuadong/laradock,arkadiusjonczek/laradock,springjk/laradock,springjk/laradock,zuohuadong/laradock,bestlong/laradock,schiggi/laradock,zuohuadong/laradock,springjk/laradock,schiggi/laradock,arkadiusjonczek/laradock,Harmonic/laradock,Harmonic/laradock,arkadiusjonczek/laradock,hnquang112/laradock