[Bug 38534] New: winetricks spams terminal output with GTK+ warnings.

https://bugs.winehq.org/show_bug.cgi?id=38534

Bug ID: 38534
           Summary: winetricks spams terminal output with GTK+ warnings.
           Product: Wine
           Version: 1.7.40
          Hardware: x86-64
               URL: http://wiki.winehq.org/winetricks
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: -unknown
          Assignee: [e-mail]
          Reporter: [e-mail]
      Distribution: ---

I am getting this in terminal when launching winetricks:

Gtk-Message: GtkDialog mapped without a transient parent. This is discouraged.

Issue is pretty similar to, for example, this:

https://ask.fedoraproject.org/en/question/61287/fedy-gives-errors/