mesontest: logfilename may be undefined
mesontest: logfilename may be undefined

Signed-off-by: Dima Krasner <bed3f98d0a894717be46c58ffa90302af9946688@dimakrasner.com>

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