[PATCH STABLE] log: mention ui.logtemplate in the help text

[Nathan Goldbaum]

# HG changeset patch
# User Nathan Goldbaum <ngoldbau at illinois.edu>
# Date 1502897089 18000
#      Wed Aug 16 10:24:49 2017 -0500
# Branch stable
# Node ID a1db17e964beee1a839769507818a50a5de3c9a3
# Parent  7686cbb0ba4138c56d038d8d82ccc052bf9b60d7
log: mention ui.logtemplate in the help text

diff --git a/mercurial/commands.py b/mercurial/commands.py
--- a/mercurial/commands.py
+++ b/mercurial/commands.py
@@ -3335,7 +3335,9 @@ def log(ui, repo, *pats, **opts):
     revisions.
 
     See :hg:`help templates` for more about pre-packaged styles and
-    specifying custom templates.
+    specifying custom templates. The default template used by the log
+    command can be customized via the ``ui.logtemplate`` configuration
+    setting.
 
     Returns 0 on success.