Reverted Don's changed of sqrtf to sqrt.  Don't understand why the change was required, suggest a problem elsewhere which should be fixed, *not* by modification of Vec2.
Reverted Don's changed of sqrtf to sqrt.  Don't understand why the change was
required, suggest a problem elsewhere which should be fixed, *not* by modification
of Vec2.


git-svn-id: 23b6355f2bb369032457de4eb5f713ee134f73a8@1693 16af8721-9629-0410-8352-f15c8da7e697

joevandyk/osg,joevandyk/osg,joevandyk/osg,joevandyk/osg,joevandyk/osg