Adds a string to be displayed in --help output after the list of options. This text often includes a bug reporting address. Note that the summary is translated (see g_option_context_set_translate_func()). Since 2.12
a string to be shown in --help output after the list of options, or NULL
See Implementation
Adds a string to be displayed in --help output after the list of options. This text often includes a bug reporting address. Note that the summary is translated (see g_option_context_set_translate_func()). Since 2.12