docs: fix typos

src/Angular.js

@@ -699,7 +699,7 @@ function sliceArgs(args, startIndex) {
  *
  * @description
  * Returns a function which calls function `fn` bound to `self` (`self` becomes the `this` for
- * `fn`). You can supply optional `args` that are are prebound to the function. This feature is also
+ * `fn`). You can supply optional `args` that are prebound to the function. This feature is also
  * known as [function currying](http://en.wikipedia.org/wiki/Currying).
  *
  * @param {Object} self Context which `fn` should be evaluated in.
@@ -1031,7 +1031,7 @@ function bindJQuery() {
 }
 
 /**
- * throw error of the argument is falsy.
+ * throw error if the argument is falsy.
  */
 function assertArg(arg, name, reason) {
   if (!arg) {

src/ngMock/angular-mocks.js

@@ -241,7 +241,7 @@ angular.mock.$ExceptionHandlerProvider = function() {
    *
    * @param {string} mode Mode of operation, defaults to `rethrow`.
    *
-   *   - `rethrow`: If any errors are are passed into the handler in tests, it typically
+   *   - `rethrow`: If any errors are passed into the handler in tests, it typically
    *                means that there is a bug in the application or test, so this mock will
    *                make these tests fail.
    *   - `log`: Sometimes it is desirable to test that an error is thrown, for this case the `log` mode stores an