Fix xwayland-game-wrapper, again

xwayland-game-wrapper

@@ -88,7 +88,7 @@ done
 (( "${OPTIND}" > ${#} )) && print_help "${0}"
 shift $(( "${OPTIND}" - 1))
 
-function () {
+function {
     emulate -L zsh
     setopt errexit
     [[ -v window_manager ]] ||
@@ -106,7 +106,7 @@ function on_sigchld {
     exit 1
 }
 
-#trap on_sigchld CHLD
+trap on_sigchld CHLD
 
 coproc Xwayland -fullscreen -geometry "${resolution}" -displayfd 1
 local xwayland_display
@@ -119,7 +119,10 @@ cat <&p >&2
 let cat_pid="${!}"
 
 sh -c "exec -- ${window_manager}" &
-sh -c "exec -- ${@}"
+function {
+    emulate -L sh
+    eval "${@}"
+} "${@}"
 let child_error_code="${?}"
 if (( ${child_error_code} )); then
     printf 'Child exited with error code %d\n' "${child_error_code}"