fix dox warnings

src/common/trailer.h

@@ -66,8 +66,8 @@ public:
    */
   virtual void Serialize (Buffer::Iterator start) const = 0;
   /**
-   * \param start an iterator which points to where the trailer
-   *        should be read.
+   * \param end an iterator which points to the end of the buffer
+   *        where the trailer should be read from.
    * \returns the number of bytes read.
    *
    * This method is used by Packet::RemoveTrailer to

src/core/attribute-helper.h

@@ -57,7 +57,7 @@ MakeSimpleAttributeChecker (std::string name)
 }
 
 /**
- * \defgroup AttributeHelper
+ * \defgroup AttributeHelper Attribute Helper
  *
  * All these macros can be used to generate automatically the code
  * for subclasses of AttributeValue, AttributeAccessor, and, AttributeChecker,

src/core/object.h

@@ -188,14 +188,14 @@ private:
 };
 
 /**
- * \param o a pointer to the object to copy.
+ * \param object a pointer to the object to copy.
  * \returns a copy of the input object.
  *
  * This method invoke the copy constructor of the input object
  * and returns the new instance.
  */
 template <typename T>
-Ptr<T> CopyObject (Ptr<T> o);
+Ptr<T> CopyObject (Ptr<T> object);
 
 /**
  * \param attributes a list of attributes to set on the 
@@ -299,7 +299,7 @@ Object::GetObject (TypeId tid) const
  *************************************************************************/
 
 template <typename T>
-Ptr<T> CopyObject (Ptr<T> o)
+Ptr<T> CopyObject (Ptr<T> object)
 {
   Ptr<T> p = Ptr<T> (new T (*PeekPointer (o)), false);
   NS_ASSERT (p->m_tid == o->m_tid);

src/mobility/position-allocator.h

@@ -124,11 +124,11 @@ public:
   void SetLayoutType (enum LayoutType layoutType);
 
   /**
-   * \param returns the x coordinate of the first allocated position.
+   * \returns the x coordinate of the first allocated position.
    */
   double GetMinX (void) const;
   /**
-   * \param returns the y coordinate of the first allocated position.
+   * \returns the y coordinate of the first allocated position.
    */
   double GetMinY (void) const;
   /**