forgot to add these

Command/Required.hs

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+{- git-annex command
+ -
+ - Copyright 2015 Joey Hess <id@joeyh.name>
+ -
+ - Licensed under the GNU GPL version 3 or higher.
+ -}
+
+module Command.Required where
+
+import Command
+import Logs.PreferredContent
+import qualified Command.Wanted
+
+cmd :: [Command]
+cmd = Command.Wanted.cmd' "required" "get or set required content expression"
+	requiredContentMapRaw
+	requiredContentSet

doc/git-annex-required.mdwn

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+# NAME
+
+git-annex required - get or set required content expression
+
+# SYNOPSIS
+
+git annex required `repository [expression]`
+
+# DESCRIPTION
+
+When run with an expression, configures the content that is required
+to be held in the archive. See [[git-annex-preferred-content]](1)
+
+For example:
+
+	git annex required . "include=*.mp3 or include=*.ogg"
+
+Without an expression, displays the current required content setting
+of the repository.
+
+# SEE ALSO
+
+[[git-annex]](1)
+
+# AUTHOR
+
+Joey Hess <id@joeyh.name>
+
+Warning: Automatically converted into a man page by mdwn2man. Edit with care.