build: Make the introspection generation quiet (again)
build: Make the introspection generation quiet (again)

gcampax/cogl,djdeath/cogl,spatulasnout/cogl,Distrotech/cogl,djdeath/cogl,Distrotech/cogl,Distrotech/cogl,djdeath/cogl-android,gcampax/cogl,collects/cogl,collects/cogl,spatulasnout/cogl,djdeath/cogl-android,gcampax/cogl,gcampax/cogl,djdeath/cogl,Distrotech/cogl,djdeath/cogl-android