Fix package description.
Fix package description.

* vte.spec: Fix package description.

jessevdk/vte,asivokon/vte-fx,aligo/vte,thestinger/vte-ng,jessevdk/vte,flaxandteal/gasket-vte,flaxandteal/gasket-vte,jessevdk/vte,gloob/vte-copy,asivokon/vte-fx,aligo/vte,rvu95/vte,pjm0616/vte,asivokon/vte-fx,pjm0616/vte,rvu95/vte,asivokon/vte-fx,flaxandteal/gasket-vte,aligo/vte,thestinger/vte-ng,saitoha/vte-sixel,thestinger/vte-ng,pjm0616/vte,saitoha/vte-sixel,rvu95/vte,jessevdk/vte,gloob/vte-copy,rvu95/vte,flaxandteal/gasket-vte,saitoha/vte-sixel,gloob/vte-copy