pep8 fix

Author: maxcountryman

rauth/oauth.py

@@ -98,7 +98,9 @@ def _normalize_request_parameters(self, oauth_params, req_kwargs):
         all_normalized.sort()
 
         # finally encode the params as a string
-        return urlencode(all_normalized, True).replace('+', '%20').replace('%7E', '~')
+        return urlencode(all_normalized, True)\
+            .replace('+', '%20')\
+            .replace('%7E', '~')
 
 
 class HmacSha1Signature(SignatureMethod):