diff -r 30535fe47e78 -r 7bbc4e113e5f mercurial/templater.py
--- a/mercurial/templater.py	Sun Sep 03 17:51:23 2017 +0900
+++ b/mercurial/templater.py	Sun Sep 03 21:17:25 2017 +0900
@@ -194,18 +194,18 @@
     >>> def f(tree):
     ...     print prettyformat(_unnesttemplatelist(tree))
     >>> f(('template', []))
-    ('string', '')
+    (string '')
     >>> f(('template', [('string', 'foo')]))
-    ('string', 'foo')
+    (string 'foo')
     >>> f(('template', [('string', 'foo'), ('symbol', 'rev')]))
     (template
-      ('string', 'foo')
-      ('symbol', 'rev'))
+      (string 'foo')
+      (symbol 'rev'))
     >>> f(('template', [('symbol', 'rev')]))  # template(rev) -> str
     (template
-      ('symbol', 'rev'))
+      (symbol 'rev'))
     >>> f(('template', [('template', [('string', 'foo')])]))
-    ('string', 'foo')
+    (string 'foo')
     """
     if not isinstance(tree, tuple):
         return tree