diff -r 3180ff7f6025 -r d4805a5e7e70 mercurial/help/environment.txt
--- a/mercurial/help/environment.txt	Sun Nov 26 11:22:27 2017 +0900
+++ b/mercurial/help/environment.txt	Tue Nov 28 13:27:43 2017 -0500
@@ -65,6 +65,8 @@
 
     ``alias``
         Don't remove aliases.
+    ``color``
+        Don't disable colored output.
     ``i18n``
         Preserve internationalization.
     ``revsetalias``