Fix null when there is no .licenses found.

Signed-off-by: Troy Dawson <tdawson@redhat.com>

nodejs-packaging-bundler

@@ -61,6 +61,7 @@ fi
 echo "LICENSES IN BUNDLE:"
 find . -name "package.json" -exec jq .license {} \; >> ${TMP_DIR}/${PACKAGE}-${VERSION}-bundled-licenses.txt
 find . -name "package.json" -exec jq '.licenses[] .type' {} \; >> ${TMP_DIR}/${PACKAGE}-${VERSION}-bundled-licenses.txt 2>/dev/null
+sed -i "/^null$/d" ${TMP_DIR}/${PACKAGE}-${VERSION}-bundled-licenses.txt
 sort -u -o ${TMP_DIR}/${PACKAGE}-${VERSION}-bundled-licenses.txt ${TMP_DIR}/${PACKAGE}-${VERSION}-bundled-licenses.txt
 echo " Downloading dev dependencies"
 npm install --no-optional --only=dev