Warn when directory numbers are non-unique.
Warn when directory numbers are non-unique.

rhd/meson,MathieuDuponchelle/meson,mesonbuild/meson,jpakkane/meson,wberrier/meson,jpakkane/meson,rhd/meson,jeandet/meson,mesonbuild/meson,jpakkane/meson,jpakkane/meson,wberrier/meson,jpakkane/meson,MathieuDuponchelle/meson,pexip/meson,mesonbuild/meson,becm/meson,becm/meson,fmuellner/meson,mesonbuild/meson,QuLogic/meson,fmuellner/meson,ernestask/meson,aaronp24/meson,ernestask/meson,ernestask/meson,jpakkane/meson,jpakkane/meson,trhd/meson,rhd/meson,aaronp24/meson,pexip/meson,wberrier/meson,pexip/meson,trhd/meson,pexip/meson,pexip/meson,jeandet/meson,aaronp24/meson,thiblahute/meson,rhd/meson,rhd/meson,mesonbuild/meson,aaronp24/meson,trhd/meson,pexip/meson,mesonbuild/meson,jeandet/meson,fmuellner/meson,MathieuDuponchelle/meson,jeandet/meson,pexip/meson,aaronp24/meson,pexip/meson,thiblahute/meson,MathieuDuponchelle/meson,wberrier/meson,becm/meson,trhd/meson,jeandet/meson,trhd/meson,ernestask/meson,ernestask/meson,trhd/meson,thiblahute/meson,becm/meson,ernestask/meson,aaronp24/meson,QuLogic/meson,mesonbuild/meson,ernestask/meson,MathieuDuponchelle/meson,aaronp24/meson,fmuellner/meson,wberrier/meson,trhd/meson,QuLogic/meson,fmuellner/meson,QuLogic/meson,jpakkane/meson,jeandet/meson,aaronp24/meson,QuLogic/meson,fmuellner/meson,QuLogic/meson,trhd/meson,jpakkane/meson,trhd/meson,becm/meson,MathieuDuponchelle/meson,wberrier/meson,wberrier/meson,ernestask/meson,jeandet/meson,fmuellner/meson,mesonbuild/meson,jeandet/meson,QuLogic/meson,thiblahute/meson,thiblahute/meson,MathieuDuponchelle/meson,ernestask/meson,rhd/meson,becm/meson,mesonbuild/meson,QuLogic/meson,pexip/meson,fmuellner/meson,becm/meson,rhd/meson,thiblahute/meson,jeandet/meson,becm/meson,aaronp24/meson,pexip/meson,fmuellner/meson,wberrier/meson,MathieuDuponchelle/meson,mesonbuild/meson,becm/meson,becm/meson,thiblahute/meson,rhd/meson,thiblahute/meson,MathieuDuponchelle/meson,QuLogic/meson,thiblahute/meson