COMP: return will never be executed after exception thrown.

For:

  /Users/builder/external/ITK/Modules/IO/Mesh/src/itkOBJMeshIO.cxx:526:5:
  warning: 'return' will never be executed [-Wunreachable-code-return]

Change-Id: I8d3c7f95b747919050a6ba7ed45c5433f4d5acdb
Merge topic 'exception-return'

6a54cbb3 COMP: return will never be executed after exception thrown.