aws/signer/v4: Fixup documentation for SignSDKRequest
Fixes typo in documentation for SignSDKRequest.
@@ -418,7 +418,7 @@ var SignRequestHandler = request.NamedHandler{
// request handler should only be used with the SDK's built in service client's
// API operation requests.
//
-// This function should not be used on its on its own, but in conjunction with
+// This function should not be used on its own, but in conjunction with
// an AWS service client's API operation call. To sign a standalone request
// not created by a service client's API operation method use the "Sign" or
// "Presign" functions of the "Signer" type.
