message: [doc] include Doxygen comments for HAVE_BOOST_PROCESS
diff: @@ -2073,7 +2073,7 @@ INCLUDE_FILE_PATTERNS =
  # recursively expanded use the := operator instead of the = operator.
  # This tag requires that the tag ENABLE_PREPROCESSING is set to YES.
  -PREDEFINED =
  +PREDEFINED = HAVE_BOOST_PROCESS
  # If the MACRO_EXPANSION and EXPAND_ONLY_PREDEF tags are set to YES then this
  # tag can be used to specify a list of macro names that should be expanded. The
  