--- a/tests/test-annotate.t	Sat Mar 03 11:07:46 2018 -0800
+++ b/tests/test-annotate.t	Sat Mar 03 15:31:37 2018 -0800
@@ -814,6 +814,8 @@
   [255]
   $ hg log -r 'followlines(baz, 2:4, startrev=20, descend=[1])'
   hg: parse error at 43: not a prefix: [
+  (followlines(baz, 2:4, startrev=20, descend=[1])
+                                              ^ here)
   [255]
   $ hg log -r 'followlines(baz, 2:4, startrev=20, descend=a)'
   hg: parse error: descend argument must be a boolean