diff -r d814bbd22946 -r f8732e33bcbc mercurial/help/config.txt
--- a/mercurial/help/config.txt	Tue Jul 17 23:34:55 2018 -0700
+++ b/mercurial/help/config.txt	Tue Jul 31 19:11:17 2018 +0530
@@ -438,6 +438,11 @@
 ``commands``
 ------------
 
+``resolve.confirm``
+    Confirm before re-merging all unresolved files when running
+    :hg:`resolve --all`.
+    (default: False)
+
 ``status.relative``
     Make paths in :hg:`status` output relative to the current directory.
     (default: False)