Don't parse FLTK arguments using Fl::arg; handle -display as other options
Fl::arg accepts several arguments which we are not documenting. Also,
it accepts a -geometry argument, which clashes with our own -geometry
option.
diff --git a/vncviewer/parameters.h b/vncviewer/parameters.h
index 9ce56b9..2ccd928 100644
--- a/vncviewer/parameters.h
+++ b/vncviewer/parameters.h
@@ -55,6 +55,7 @@
extern rfb::BoolParameter sendClipboard;
#if !defined(WIN32) && !defined(__APPLE__)
extern rfb::BoolParameter sendPrimary;
+extern rfb::StringParameter display;
#endif
extern rfb::StringParameter menuKey;