message: Fix header sorting for modules without headers
diff: @@ -877,7 +877,9 @@ macro(_ocv_create_module)
  ocv_compiler_optimization_process_sources(OPENCV_MODULE_${the_module}_SOURCES OPENCV_MODULE_${the_module}_DEPS_EXT ${the_module})
  set(__module_headers ${OPENCV_MODULE_${the_module}_HEADERS})
  + if(__module_headers)
  list(SORT __module_headers) # fix headers order, useful for bindings
  + endif()
  set(OPENCV_MODULE_${the_module}_HEADERS ${__module_headers} CACHE INTERNAL "List of header files for ${the_module}")
  set(OPENCV_MODULE_${the_module}_SOURCES ${OPENCV_MODULE_${the_module}_SOURCES} CACHE INTERNAL "List of source files for ${the_module}")
  