Print prefixed output in a single call to rdclogprint_int
Print prefixed output in a single call to rdclogprint_int

* On android each call to rdclogprint_int goes onto its own line in the logcat
  output, so we need to combine the prefix externally.

Zorro666/renderdoc,Zorro666/renderdoc,baldurk/renderdoc,baldurk/renderdoc,Zorro666/renderdoc,googlestadia/renderdoc,baldurk/renderdoc,googlestadia/renderdoc,googlestadia/renderdoc,googlestadia/renderdoc,TurtleRockStudios/renderdoc_public,googlestadia/renderdoc,TurtleRockStudios/renderdoc_public,TurtleRockStudios/renderdoc_public,baldurk/renderdoc,Zorro666/renderdoc,Zorro666/renderdoc,TurtleRockStudios/renderdoc_public,TurtleRockStudios/renderdoc_public,TurtleRockStudios/renderdoc_public,baldurk/renderdoc,googlestadia/renderdoc,baldurk/renderdoc,Zorro666/renderdoc