# HG changeset patch
# User Martin von Zweigbergk <martinvonz@google.com>
# Date 1526055386 25200
# Node ID 5ac72e07692ac5363c3953c2ae63df63202a0139
# Parent  312d7d14d44e8fa0a8d032df519c9191db22f618
shortest: avoid magic number "41"

As suggested by Yuya. Feel free to fold into D3502.

Differential Revision: https://phab.mercurial-scm.org/D3531

diff -r 312d7d14d44e -r 5ac72e07692a mercurial/scmutil.py
--- a/mercurial/scmutil.py	Fri May 11 07:31:51 2018 -0700
+++ b/mercurial/scmutil.py	Fri May 11 09:16:26 2018 -0700
@@ -466,7 +466,7 @@
     def disambiguate(prefix):
         """Disambiguate against revnums."""
         hexnode = hex(node)
-        for length in range(len(prefix), 41):
+        for length in range(len(prefix), len(hexnode) + 1):
             prefix = hexnode[:length]
             if not isrev(prefix):
                 return prefix