Add a --audio-output-latency command-line argument

This allows optimizing the audio output latency on higher-end CPUs,
especially in projects that do not expose a way to override this setting.

misc/dist/shell/_godot.zsh-completion

@@ -43,6 +43,7 @@ _arguments \
   '--remote-fs[use a remote filesystem]:remote filesystem address' \
   '--remote-fs-password[password for remote filesystem]:remote filesystem password' \
   '--audio-driver[set the audio driver]:audio driver name' \
+  '--audio-output-latency[override audio output latency in milliseconds (default is 15 ms)]:number of milliseconds' \
   '--display-driver[set the display driver]:display driver name' \
   "--rendering-method[set the renderer]:renderer name:((forward_plus\:'Desktop renderer' mobile\:'Desktop and mobile renderer' gl_compatibility\:'Desktop, mobile and web renderer'))" \
   "--rendering-driver[set the rendering driver]:rendering driver name:((vulkan\:'Vulkan renderer' opengl3\:'OpenGL ES 3.0 renderer' dummy\:'Dummy renderer'))" \

misc/dist/shell/godot.bash-completion

@@ -46,6 +46,7 @@ _complete_godot_options() {
 --remote-fs
 --remote-fs-password
 --audio-driver
+--audio-output-latency
 --display-driver
 --rendering-method
 --rendering-driver

misc/dist/shell/godot.fish

@@ -59,6 +59,7 @@ complete -c godot -l render-thread -d "Set the render thread mode" -x -a "unsafe
 complete -c godot -l remote-fs -d "Use a remote filesystem (<host/IP>[:<port>] address)" -x
 complete -c godot -l remote-fs-password -d "Password for remote filesystem" -x
 complete -c godot -l audio-driver -d "Set the audio driver" -x
+complete -c godot -l audio-output-latency -d "Override audio output latency in milliseconds (default is 15 ms)" -x
 complete -c godot -l display-driver -d "Set the display driver" -x
 complete -c godot -l rendering-method -d "Set the renderer" -x -a "(godot_rendering_method_args)"
 complete -c godot -l rendering-driver -d "Set the rendering driver" -x -a "(godot_rendering_driver_args)"