pkgconfig: Prevent trailing space
pkgconfig: Prevent trailing space

Prepend instead of appending a space so that we never end with a
trailing space.

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