message: examples: Remove double-backslash from install path
  This commit removes the double-backslash when installing the examples.
  Before:
  .../upm//examples/...
  Before:
  .../upm/examples/...
diff: @@ -120,7 +120,7 @@ if(BUILDEXAMPLES)
  # Add all examples as an install component (if building examples)
  install (DIRECTORY ${PROJECT_SOURCE_DIR}/examples
  - DESTINATION ${CMAKE_INSTALL_DATADIR}/upm/
  + DESTINATION ${CMAKE_INSTALL_DATADIR}/upm
  COMPONENT ${CMAKE_PROJECT_NAME}-examples
  FILES_MATCHING
  PATTERN "*.c"
  