ARROW-3100: [GLib] Follow Homebrew change that lua splits luarocks
ARROW-3100: [GLib] Follow Homebrew change that lua splits luarocks

https://github.com/Homebrew/homebrew-core/commit/799af8798dcd485e97dc18aa0603c5575a714f0f

Author: Kouhei Sutou <kou@clear-code.com>

Closes #2459 from kou/glib-luarocks and squashes the following commits:

726cde4b <Kouhei Sutou>  Follow Homebrew change that lua splits luarocks

wesm/arrow,apache/arrow,wesm/arrow,cpcloud/arrow,laurentgo/arrow,laurentgo/arrow,apache/arrow,wesm/arrow,majetideepak/arrow,majetideepak/arrow,cpcloud/arrow,cpcloud/arrow,renesugar/arrow,majetideepak/arrow,pcmoritz/arrow,apache/arrow,tebeka/arrow,cpcloud/arrow,kou/arrow,xhochy/arrow,kou/arrow,icexelloss/arrow,renesugar/arrow,pcmoritz/arrow,majetideepak/arrow,icexelloss/arrow,icexelloss/arrow,wesm/arrow,icexelloss/arrow,kou/arrow,xhochy/arrow,laurentgo/arrow,pcmoritz/arrow,pcmoritz/arrow,itaiin/arrow,renesugar/arrow,pcmoritz/arrow,tebeka/arrow,renesugar/arrow,apache/arrow,icexelloss/arrow,tebeka/arrow,pcmoritz/arrow,kou/arrow,xhochy/arrow,itaiin/arrow,majetideepak/arrow,majetideepak/arrow,tebeka/arrow,renesugar/arrow,kou/arrow,laurentgo/arrow,kou/arrow,cpcloud/arrow,tebeka/arrow,apache/arrow,cpcloud/arrow,xhochy/arrow,wesm/arrow,itaiin/arrow,icexelloss/arrow,apache/arrow,tebeka/arrow,wesm/arrow,icexelloss/arrow,cpcloud/arrow,majetideepak/arrow,renesugar/arrow,pcmoritz/arrow,majetideepak/arrow,pcmoritz/arrow,kou/arrow,pcmoritz/arrow,majetideepak/arrow,xhochy/arrow,apache/arrow,laurentgo/arrow,kou/arrow,pcmoritz/arrow,icexelloss/arrow,itaiin/arrow,icexelloss/arrow,tebeka/arrow,laurentgo/arrow,icexelloss/arrow,kou/arrow,itaiin/arrow,kou/arrow,wesm/arrow,renesugar/arrow,xhochy/arrow,laurentgo/arrow,renesugar/arrow,kou/arrow,majetideepak/arrow,tebeka/arrow,renesugar/arrow,majetideepak/arrow,renesugar/arrow,wesm/arrow,cpcloud/arrow,xhochy/arrow,pcmoritz/arrow,itaiin/arrow,wesm/arrow,apache/arrow,xhochy/arrow,xhochy/arrow,icexelloss/arrow,itaiin/arrow,cpcloud/arrow,cpcloud/arrow,itaiin/arrow,laurentgo/arrow,itaiin/arrow,wesm/arrow,apache/arrow,xhochy/arrow,majetideepak/arrow,renesugar/arrow,xhochy/arrow,wesm/arrow,itaiin/arrow,renesugar/arrow,apache/arrow,xhochy/arrow,laurentgo/arrow,laurentgo/arrow,kou/arrow,cpcloud/arrow,laurentgo/arrow,cpcloud/arrow,majetideepak/arrow,pcmoritz/arrow,kou/arrow,kou/arrow,xhochy/arrow,icexelloss/arrow,xhochy/arrow,apache/arrow,icexelloss/arrow,wesm/arrow,pcmoritz/arrow,wesm/arrow,apache/arrow,itaiin/arrow,renesugar/arrow,pcmoritz/arrow,itaiin/arrow,laurentgo/arrow,renesugar/arrow,itaiin/arrow,renesugar/arrow,cpcloud/arrow,laurentgo/arrow,tebeka/arrow,pcmoritz/arrow,xhochy/arrow,cpcloud/arrow,itaiin/arrow,laurentgo/arrow,itaiin/arrow,icexelloss/arrow,apache/arrow,majetideepak/arrow,wesm/arrow,laurentgo/arrow,apache/arrow,majetideepak/arrow,tebeka/arrow