Update install-mac.md (#1314)
Update install-mac.md (#1314)

added unix_socket= to the code example
nandes2062/luya,luyadev/luya,martinpetrasch/luya,martinpetrasch/luya,luyadev/luya,zephir/luya,nandes2062/luya,nandes2062/luya,martinpetrasch/luya,zephir/luya,nandes2062/luya,zephir/luya,zephir/luya,zephir/luya,luyadev/luya,martinpetrasch/luya