Marcin Serwin

zenity dialog: fix data race and reduce number of allocs

14

## Description ### dialog/unix: remove /usr/bin/env indirection SDL process is using `posix_spawnp` which already does the path lookup so additional indirection via `env` is unnecessary ### dialog/unix: reduce string allocations...

## Description When using `SDL_ConvertEventToRenderCoordinates` with `SDL_EVENT_FINGER_MOTION` events it converts `x` and `y` coordinates but does not convert the the `dx` and the `dy` unlike `xrel` and `yrel` of mouse...