Gtk3::Gdk::SELECTION_CLIPBOARD not defined variant

[Tao-T]

Brief summary of issue

Not exposed or defined, so the real value passed to Gtk3::Clipboard::get() is undef

Steps to reproduce the issue

1. start shutter

Error output

Name "Gtk3::Gdk::SELECTION_CLIPBOARD" used only once: possible typo at /usr/bin/shutter line 418.

Extra information, such as Shutter version, display server in use (Xorg or Wayland), operating system and ideas for how to solve:

Gtk3::Gdk::Atom::intern can be used to fetch clipboard types.