Fix Doxygen syntax (amend/revert f1a4767ac)

1st line after /**  brief description.
Doxygen is used for Ardour's online source doc and the Lua class reference.

1 files changed, 12 insertions, 4 deletions

diff --git a/libs/pbd/pbd/property_list.h b/libs/pbd/pbd/property_list.h
index 7bc3752d4e..c43c160684 100644
--- a/libs/pbd/pbd/property_list.h
+++ b/libs/pbd/pbd/property_list.h
@@ -41,12 +41,16 @@ public:
 	void get_changes_as_xml (XMLNode*);
 	void invert ();
 
-	/* Add a property (of some kind) to the list. Used when
+	/** Add a property (of some kind) to the list.
+	 *
+	 * Used when
 	 * constructing PropertyLists that describe a change/operation.
 	 */
 	bool add (PropertyBase* prop);
 
-	/* Code that is constructing a property list for use
+	/** Construct a new Property List
+	 *
+	 * Code that is constructing a property list for use
 	 * in setting the state of an object uses this.
 	 *
 	 * Defined below, once we have Property<T>
@@ -57,7 +61,9 @@ protected:
 	bool _property_owner;
 };
 
-/* A variant of PropertyList that does not delete its
+/** Persistent Property List
+ *
+ * A variant of PropertyList that does not delete its
  * property list in its destructor. Objects with their
  * own Properties store them in an OwnedPropertyList
  * to avoid having them deleted at the wrong time.
@@ -67,7 +73,9 @@ class LIBPBD_API OwnedPropertyList : public PropertyList
 public:
 	OwnedPropertyList();
 
-	/* Classes that own property lists use this to add their
+	/** Add a property to the List
+	 *
+	 * Classes that own property lists use this to add their
 	 * property members to their plists. Note that it takes
 	 * a reference argument rather than a pointer like
 	 * one of the add() methods in PropertyList.