Format tweaks for boot string

quickemu

@@ -253,13 +253,14 @@ function vm_boot() {
     -device virtio-net,netdev=nic \
     -rtc base=localtime,clock=host \
     -serial mon:stdio \
-    -audiodev pa,id=pa,server=unix:$XDG_RUNTIME_DIR/pulse/native,out.stream-name=${LAUNCHER}-${VMNAME},in.stream-name=${LAUNCHER}-${VMNAME} \
+    -audiodev pa,id=pa,server=unix:${XDG_RUNTIME_DIR}/pulse/native,out.stream-name=${LAUNCHER}-${VMNAME},in.stream-name=${LAUNCHER}-${VMNAME} \
     -device intel-hda -device hda-duplex,audiodev=pa \
     -device qemu-xhci,id=xhci,p2=8,p3=8 -device usb-kbd -device usb-tablet \
     -object rng-random,id=rng0,filename=/dev/urandom \
     -device virtio-rng-pci,rng=rng0 \
     ${VIDEO_DEV} \
-    -display ${UI},gl=${GL} ${STATUSQUO} \
+    -display ${UI},gl=${GL} \
+    ${STATUSQUO} \
     "$@"
 }