strip trailing whitespace

Author: esc

README.rst

@@ -20,11 +20,11 @@ INSTALL
 If you have downloaded the source code:
 
 	python setup.py install
-	
-or if you want to obtain a copy more easily: 
+
+or if you want to obtain a copy more easily:
 
     easy_install gitpython
-    
+
 A distribution package can be obtained for manual installation at:
 
     http://pypi.python.org/pypi/GitPython