git: Fix bug building git for Linuxbrew
git: Fix bug building git for Linuxbrew

Fix bug building git without Homebrewed perl for Linuxbrew

Closes Homebrew/linuxbrew#392

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