# HG changeset patch
# User Augie Fackler <augie@google.com>
# Date 2015-06-12 20:42:07
# Node ID 4bdf6f58aee1a88dedca7c88c866ee2e5f25f3b6
# Parent  1311aee85dcfb9bf620e86c692c7243cdccf67d0

revsetbenchmarks: clarify comment based on irc discussion

diff --git a/contrib/revsetbenchmarks.py b/contrib/revsetbenchmarks.py
--- a/contrib/revsetbenchmarks.py
+++ b/contrib/revsetbenchmarks.py
@@ -95,7 +95,10 @@ def printrevision(rev):
 def idxwidth(nbidx):
     """return the max width of number used for index
 
-    Yes, this is basically a log10."""
+    This is similar to log10(nbidx), but we use custom code here
+    because we start with zero and we'd rather not deal with all the
+    extra rounding business that log10 would imply.
+    """
     nbidx -= 1 # starts at 0
     idxwidth = 0
     while nbidx: