--- debderiver
+++ debderiver_patch3_1_3.py
@@ -34,7 +34,7 @@
 
 class Suite(object):
     """Suite.
-    
+
     A suite is a repository of packages."""
 
     def __init__(self):
@@ -49,7 +49,7 @@
 
 class Distribution(Suite):
     """Distribution.
-    
+
     This is the suite that can stand on its own, i.e. provides a working
     operating system.  There's only one of these per operating system
     version."""
@@ -70,7 +70,7 @@
 
 class Supplementary_Suite(Suite):
     """Supplementary suite.
-    
+
     This is a suite that can be added to a distribution, i.e. packages from 
     it complement the principal "distribution" suite.  A supplementary suite 
     usually provides newer package versions or extra functionality (e.g. a 
@@ -206,7 +206,7 @@
                 ext = f.split('.')[-1].lower()
                 if ext in ('deb', 'dsc', 'udeb'):
                     self._do(' '.join(('include' + ext, suite, p)))
-                    
+
     def _include_thirdparty(self):
         """Recursively include third-party packages."""