Fix handling of unrecognized command line args in runApplication.
Fix handling of unrecognized command line args in runApplication.

The previous definition and implementation were dysfunctional.

gedaiu/vibe.d,DBankov/vibe.d,Geod24/vibe.d,rejectedsoftware/vibe.d,etcimon/vibe.d,chalucha/vibe.d,etcimon/vibe.d