dist: Make usage of period in messages consistent
dist: Make usage of period in messages consistent

Having a period at the end of sentences in messages is confusing when
a file or path is being outputted, and is inconsistent when not.

This is part of an ongoing effort to fix this inconsistency across the
message outputs everywhere in Meson.

pexip/meson,becm/meson,MathieuDuponchelle/meson,jpakkane/meson,MathieuDuponchelle/meson,QuLogic/meson,pexip/meson,MathieuDuponchelle/meson,pexip/meson,jpakkane/meson,MathieuDuponchelle/meson,jpakkane/meson,mesonbuild/meson,jpakkane/meson,becm/meson,mesonbuild/meson,mesonbuild/meson,pexip/meson,becm/meson,becm/meson,jpakkane/meson,QuLogic/meson,mesonbuild/meson,becm/meson,QuLogic/meson,becm/meson,jpakkane/meson,becm/meson,QuLogic/meson,jpakkane/meson,jpakkane/meson,mesonbuild/meson,mesonbuild/meson,QuLogic/meson,pexip/meson,QuLogic/meson,pexip/meson,mesonbuild/meson,mesonbuild/meson,MathieuDuponchelle/meson,pexip/meson,pexip/meson,jpakkane/meson,pexip/meson,mesonbuild/meson,QuLogic/meson,QuLogic/meson,MathieuDuponchelle/meson,MathieuDuponchelle/meson,MathieuDuponchelle/meson,QuLogic/meson,mesonbuild/meson,becm/meson,becm/meson,pexip/meson,becm/meson,MathieuDuponchelle/meson