fixed typo

diff --git a/requests/models.py b/requests/models.py
index 8fd973535c33c6bc07bf947c893a81da71dee91f..9b8fd171f7b006f02cd6a9a3c33a120d3ba6482c 100644 (file)
--- a/requests/models.py
+++ b/requests/models.py
@@ -90,7 +90,7 @@ class RequestEncodingMixin(object):
         """Build the body for a multipart/form-data request.
 
         Will successfully encode files when passed as a dict or a list of
-        2-tuples. Order is retained if data is a list of 2-tuples but abritrary
+        2-tuples. Order is retained if data is a list of 2-tuples but arbitrary
         if parameters are supplied as a dict.
 
         """