change --parents and --recurse to boolean

Signed-off-by: Nico Schottelius <nico@brief.schottelius.org>

conf/type/__directory/man.text

@@ -32,14 +32,15 @@ mode::
 owner::
    User to chown to.
 
+
+OPTIONAL BOOLEAN PARAMETERS
+---------------------------
 parents::
-   Whether to create parents as well (mkdir -p behaviour). Must be yes or no.
+   Whether to create parents as well (mkdir -p behaviour)
 
 recursive::
    If supplied the chgrp and chown call will run recursively.
    This does *not* influence the behaviour of chmod.
-   Must be yes or no.
-
 
 EXAMPLES
 --------

conf/type/__directory/parameter/boolean

@@ -0,0 +1,2 @@
+parents
+recursive

conf/type/__directory/parameter/optional

@@ -2,5 +2,3 @@ state
 group
 mode
 owner
-parents
-recursive