Split args in RunScript again
Commit 93389c73 ("Port deprecated method") changed the behaviour to not do argument splitting again. Reintroduce the old behaviour without using a deprecated method if Qt 5.15 is available.
Commit 93389c73 ("Port deprecated method") changed the behaviour to not do argument splitting again. Reintroduce the old behaviour without using a deprecated method if Qt 5.15 is available.