CMake Error at Repeat\.cmake:[0-9]+ \(export\):
  export command already specified for the file

    foo\.cmake

  Did you miss 'APPEND' keyword\?
Call Stack \(most recent call first\):
  Repeat-CMP0103-NEW\.cmake:[0-9]+ \(include\)
  CMakeLists\.txt:[0-9]+ \(include\)


CMake Error at Repeat/CMakeLists\.txt:[0-9]+ \(export\):
  export command already specified for the file

    .+/foo\.cmake

  Did you miss 'APPEND' keyword\?
