Reestablished error message

Author: tariqdaouda

pyArango/collection.py

@@ -149,9 +149,7 @@ def getCollectionClass(cls, name) :
         try :
             return cls.collectionClasses[name]
         except KeyError :
-            raise KeyError("There is no Collection Class of type: '%s';"+
-                           " currently supported values: [%s]"
-                           % (name, ', '.join(getCollectionClasses().keys())))
+            raise KeyError( "There is no Collection Class of type: '%s'; currently supported values: [%s]" % (name, ', '.join(getCollectionClasses().keys())) )
 
     @classmethod
     def isCollection(cls, name) :