# HG changeset patch
# User Martin von Zweigbergk <martinvonz@google.com>
# Date 1522879903 25200
# Node ID ac666c5c2e0ceb2c1262540ed85cd2822a632459
# Parent  92171562c7f39bcfbdeab4c3aca49de04830be0a
wireproto: use repo.lookup() for lookup command

I'm trying to reduce use of repo[<string>] and this seems like an
obvious place to use repo.lookup().

Differential Revision: https://phab.mercurial-scm.org/D3081

diff -r 92171562c7f3 -r ac666c5c2e0c mercurial/wireproto.py
--- a/mercurial/wireproto.py	Wed Apr 04 14:57:58 2018 -0700
+++ b/mercurial/wireproto.py	Wed Apr 04 15:11:43 2018 -0700
@@ -1014,8 +1014,8 @@
 def lookup(repo, proto, key):
     try:
         k = encoding.tolocal(key)
-        c = repo[k]
-        r = c.hex()
+        n = repo.lookup(k)
+        r = hex(n)
         success = 1
     except Exception as inst:
         r = stringutil.forcebytestr(inst)