test a few label quoting things

.github/workflows/generic_build.yml

@@ -171,7 +171,15 @@ jobs:
 
           # Add labels to a new container...
           container="$( buildah from "${image_id}" )"
-          # buildah config ${LABELS[@]} "${container}"
+
+          # FIXME: Test out different options
+          declare -a mycmd=( buildah config ${LABELS[@]} "${container}" )
+          echo "Label args: " "${LABELS[@]}"
+          echo "Label args with @Q: " "${LABELS[@]@Q}"
+          echo "Label command: " "${mycmd[@]}"
+          echo "Label command with @Q: " "${mycmd[@]@Q}"
+
+          buildah config "${LABELS[@]}" "${container}"
 
           # ...then store the container (now with labels) as a new image. This
           # is what we'll use to upload.