message: cmake: avoid double variable expand
diff: @@ -340,8 +340,8 @@ OCV_OPTION(CV_ENABLE_INTRINSICS "Use intrinsic-based optimized code" ON )
  OCV_OPTION(CV_DISABLE_OPTIMIZATION "Disable explicit optimized code (dispatched code/intrinsics/loop unrolling/etc)" OFF )
  OCV_OPTION(CV_TRACE "Enable OpenCV code trace" ON)
  -OCV_OPTION(ENABLE_PYLINT "Add target with Pylint checks" (${BUILD_DOCS} OR ${BUILD_EXAMPLES}) IF (NOT CMAKE_CROSSCOMPILING AND NOT APPLE_FRAMEWORK) )
  -OCV_OPTION(ENABLE_FLAKE8 "Add target with Python flake8 checker" (${BUILD_DOCS} OR ${BUILD_EXAMPLES}) IF (NOT CMAKE_CROSSCOMPILING AND NOT APPLE_FRAMEWORK) )
  +OCV_OPTION(ENABLE_PYLINT "Add target with Pylint checks" (BUILD_DOCS OR BUILD_EXAMPLES) IF (NOT CMAKE_CROSSCOMPILING AND NOT APPLE_FRAMEWORK) )
  +OCV_OPTION(ENABLE_FLAKE8 "Add target with Python flake8 checker" (BUILD_DOCS OR BUILD_EXAMPLES) IF (NOT CMAKE_CROSSCOMPILING AND NOT APPLE_FRAMEWORK) )
  if(ENABLE_IMPL_COLLECTION)
  add_definitions(-DCV_COLLECT_IMPL_DATA)
  