From Albert Luaces, typo fixes.

git-svn-id: http://svn.openscenegraph.org/osg/OpenSceneGraph/trunk@14883 16af8721-9629-0410-8352-f15c8da7e697

src/osgAnimation/RigGeometry.cpp

@@ -24,7 +24,7 @@ osg::BoundingBox RigComputeBoundingBoxCallback::computeBound(const osg::Drawable
 {
     const osgAnimation::RigGeometry& rig = dynamic_cast<const osgAnimation::RigGeometry&>(drawable);
 
-    // if a valid inital bounding box is set we use it without asking more
+    // if a valid initial bounding box is set we use it without asking more
     if (rig.getInitialBound().valid())
         return rig.getInitialBound();