Function gio_sys::g_file_replace_contents

pub unsafe extern fn g_file_replace_contents(file: *mut GFile,
                                             contents: *mut u8,
                                             length: size_t,
                                             etag: *const c_char,
                                             make_backup: gboolean,
                                             flags: GFileCreateFlags,
                                             new_etag: *mut *mut c_char,
                                             cancellable: *mut GCancellable,
                                             error: *mut *mut GError)
                                             -> gboolean