catacomb/__init__.py (KeySZRange.pad): Return correct value.

If the input is already a multiple of the modulus, then don't round up
to the next one.

diff --git a/catacomb/__init__.py b/catacomb/__init__.py
index 9178475..65695bb 100644 (file)
--- a/catacomb/__init__.py
+++ b/catacomb/__init__.py
@@ -623,7 +623,7 @@ class _tmp:
   def pad(me, sz):
     if sz > me.max: raise ValueError, 'key too large'
     elif sz < me.min: return me.min
-    else: sz += me.mod; return sz - sz%me.mod
+    else: sz += me.mod - 1; return sz - sz%me.mod
 _augment(KeySZRange, _tmp)
 
 class _tmp: