cgdb 0.6.8: Depends on flex for Linuxbrew
cgdb 0.6.8: Depends on flex for Linuxbrew

Closes #416.

Signed-off-by: Shaun Jackman <b580dab3251a9622aba3803114310c23fdb42900@gmail.com>

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