--- a/testing/specialpowers/content/WrapPrivileged.jsm
+++ b/testing/specialpowers/content/WrapPrivileged.jsm
@@ -35,17 +35,19 @@ function isWrappable(x) {
   if (typeof x === "object") {
     return x !== null;
   }
   return typeof x === "function";
 }
 
 function isWrapper(x) {
   try {
-    return isWrappable(x) && typeof x.SpecialPowers_wrappedObject !== "undefined";
+    return (
+      isWrappable(x) && typeof x.SpecialPowers_wrappedObject !== "undefined"
+    );
   } catch (e) {
     // If `x` is a remote object proxy, trying to access an unexpected property
     // on it will throw a security error, even though we're chrome privileged.
     // However, remote proxies are not SpecialPowers wrappers, so:
     return false;
   }
 }