CAs: Fix final new line in json

tools/generate_mozilla_certificates.py

@@ -46,6 +46,7 @@ def process(file, dst, type):
     warninglist['matching_attributes'] = ["md5", "sha1", "sha256", "filename|md5", "filename|sha1", "filename|sha256", "x509-fingerprint-md5", "x509-fingerprint-sha1", "x509-fingerprint-sha256"]
     with open('../lists/{dst}/list.json'.format(dst=dst), 'w') as data_file:
         json.dump(warninglist, data_file, indent=2, sort_keys=True)
+        data_file.write("\n")
 
 if __name__ == '__main__':
     download(Included_CA_url, Included_CA_file)