Remove all dots at end of descriptions

Specially crafted for @JagaJaga

    find pkgs -name "*.nix" -exec \
      sed -e 's|\(description.*\)\.";|\1";|g' -i {} \;

pkgs/applications/misc/jp2a/default.nix

@@ -15,7 +15,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     homepage = https://csl.name/jp2a/;
-    description = "A small utility that converts JPG images to ASCII.";
+    description = "A small utility that converts JPG images to ASCII";
     license = licenses.gpl2;
   };
 }