Reduce an indent level in the install for loop
Reduce an indent level in the install for loop

if not t.should_install(): continue

No logic changes at all.

Also improve the message when erroring out about insufficient
install_dir: list elements.

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