docs($httpBackend): change to more friendly language

- Change s**t to more neutral word

Closes #11380
Closes #11364

Author: wesleycho

src/ng/httpBackend.js

@@ -137,7 +137,7 @@ function createHttpBackend($browser, createXhr, $browserDefer, callbacks, rawDoc
   };
 
   function jsonpReq(url, callbackId, done) {
-    // we can't use jQuery/jqLite here because jQuery does crazy shit with script elements, e.g.:
+    // we can't use jQuery/jqLite here because jQuery does crazy stuff with script elements, e.g.:
     // - fetches local scripts via XHR and evals them
     // - adds and immediately removes script elements from the document
     var script = rawDocument.createElement('script'), callback = null;