faust-mode: add copyright to header

magnetophon · magnetophon · commit b667ce0e0b29 · 2023-05-16T17:20:26.000+02:00
diff --git a/faust-mode/header b/faust-mode/header
@@ -28,4 +28,5 @@ declare license "${4:$$
     "MPL-2.0"
     "Unlicense"
   ))}";
-$0
+declare copyright "${5:© $3  `(format-time-string "%Y")`$0}"
+$0
