[wayland] Pass command line arguments to launched processes
Summary:
Since QProcess::setProgram() doesn't split the command, we need to do it
ourselves.
Test Plan: dbus-run-session kwin_wayland "kate foo.txt" works again.
Reviewers: KWin, cblack, davidedmundson, apol
Reviewed By: KWin, cblack, davidedmundson, apol
Subscribers: apol, kwin
Tags: KWin
Differential Revision: https://phabricator.kde.org/D29253