software_spec.rb (build_url): Fix for Linuxbrew
software_spec.rb (build_url): Fix for Linuxbrew

Replace
root_url "https://homebrew.bintray.com"
with
root_url "https://linuxbrew.bintray.com"

See Homebrew/linuxbrew#380

LeonB/linuxbrew,Homebrew/linuxbrew,reelsense/linuxbrew,reelsense/linuxbrew,Gui13/linuxbrew,bukzor/linuxbrew,jbaum98/linuxbrew,LeonB/linuxbrew,tghs/linuxbrew,digiter/linuxbrew,outcoldman/linuxbrew,danabrand/linuxbrew,amenk/linuxbrew,amenk/linuxbrew,SuperNEMO-DBD/cadfaelbrew,digiter/linuxbrew,ebouaziz/linuxbrew,gnubila-france/linuxbrew,drbenmorgan/linuxbrew,davydden/linuxbrew,DoomHammer/linuxbrew,tdsmith/linuxbrew,davydden/linuxbrew,digiter/linuxbrew,lvicentesanchez/linuxbrew,bukzor/linuxbrew,arcivanov/linuxbrew,sjackman/linuxbrew,DoomHammer/linuxbrew,tomas/linuxbrew,Angeldude/linuxbrew,princeofdarkness76/linuxbrew,tjhei/linuxbrew,princeofdarkness76/linuxbrew,tghs/linuxbrew,reelsense/linuxbrew,saketkc/linuxbrew,tdsmith/linuxbrew,IsmailM/linuxbrew,jack-and-rozz/linuxbrew,Linuxbrew/linuxbrew,tjhei/linuxbrew,jack-and-rozz/linuxbrew,drbenmorgan/linuxbrew,Linuxbrew/linuxbrew,jbaum98/linuxbrew,arcivanov/linuxbrew,hyokosdeveloper/linuxbrew,lvicentesanchez/linuxbrew,davydden/linuxbrew,tghs/linuxbrew,gnubila-france/linuxbrew,ebouaziz/linuxbrew,lvicentesanchez/linuxbrew,SuperNEMO-DBD/cadfaelbrew,dholm/linuxbrew,romejoe/linuxbrew,Linuxbrew/linuxbrew,saketkc/linuxbrew,arcivanov/linuxbrew,tomas/linuxbrew,jwillemsen/linuxbrew,gnubila-france/linuxbrew,Gui13/linuxbrew,IsmailM/linuxbrew,gcstang/linuxbrew,ebouaziz/linuxbrew,afdnlw/linuxbrew,tomas/linuxbrew,romejoe/linuxbrew,drbenmorgan/linuxbrew,tghs/linuxbrew,SuperNEMO-DBD/cadfaelbrew,tghs/linuxbrew,afdnlw/linuxbrew,Angeldude/linuxbrew,IsmailM/linuxbrew,jack-and-rozz/linuxbrew,LeonB/linuxbrew,danabrand/linuxbrew,brevilo/linuxbrew,tdsmith/linuxbrew,ebouaziz/linuxbrew,digiter/linuxbrew,hyokosdeveloper/linuxbrew,tomas/linuxbrew,Gui13/linuxbrew,digiter/linuxbrew,Angeldude/linuxbrew,Gui13/linuxbrew,adamliter/linuxbrew,lvicentesanchez/linuxbrew,jbaum98/linuxbrew,Homebrew/linuxbrew,tdsmith/linuxbrew,brevilo/linuxbrew,hyokosdeveloper/linuxbrew,DoomHammer/linuxbrew,jwillemsen/linuxbrew,outcoldman/linuxbrew,bukzor/linuxbrew,outcoldman/linuxbrew,DoomHammer/linuxbrew,brevilo/linuxbrew,SuperNEMO-DBD/cadfaelbrew,princeofdarkness76/linuxbrew,bukzor/linuxbrew,afdnlw/linuxbrew,caputomarcos/linuxbrew,gnubila-france/linuxbrew,caputomarcos/linuxbrew,Gui13/linuxbrew,adamliter/linuxbrew,gcstang/linuxbrew,davydden/linuxbrew,Homebrew/linuxbrew,saketkc/linuxbrew,romejoe/linuxbrew,saketkc/linuxbrew,tdsmith/linuxbrew,amenk/linuxbrew,tjhei/linuxbrew,adamliter/linuxbrew,reelsense/linuxbrew,sjackman/linuxbrew,hyokosdeveloper/linuxbrew,dholm/linuxbrew,caputomarcos/linuxbrew,sjackman/linuxbrew,afdnlw/linuxbrew,caputomarcos/linuxbrew,adamliter/linuxbrew,amenk/linuxbrew,Homebrew/linuxbrew,drbenmorgan/linuxbrew,danabrand/linuxbrew,sjackman/linuxbrew,jwillemsen/linuxbrew,jbaum98/linuxbrew,gcstang/linuxbrew,dholm/linuxbrew,Linuxbrew/linuxbrew,Angeldude/linuxbrew,IsmailM/linuxbrew,danabrand/linuxbrew