--- a/tests/test-help.out
+++ b/tests/test-help.out
@@ -42,6 +42,7 @@ list of commands (use "hg help -v" to sh
  addremove   add all new files, delete all missing files
  annotate    show changeset information per file line
  archive     create unversioned archive of a repository revision
+ backout     reverse effect of earlier changeset
  bundle      create a changegroup file
  cat         output the latest or given revisions of files
  clone       make a copy of an existing repository
@@ -84,6 +85,7 @@ list of commands (use "hg help -v" to sh
  addremove   add all new files, delete all missing files
  annotate    show changeset information per file line
  archive     create unversioned archive of a repository revision
+ backout     reverse effect of earlier changeset
  bundle      create a changegroup file
  cat         output the latest or given revisions of files
  clone       make a copy of an existing repository