test a different language code (sv-SE = Swedish/Sweden)

Author: Fil

test/output/logTickFormatFunctionSv.svg

@@ -3,3 +3,7 @@ import * as Plot from "@observablehq/plot";
 export async function logTickFormatFunction() {
   return Plot.plot({x: {type: "log", domain: [1, 4200], tickFormat: Plot.formatNumber()}});
 }
+
+export async function logTickFormatFunctionSv() {
+  return Plot.plot({x: {type: "log", domain: [1, 4200], tickFormat: Plot.formatNumber("sv-SE")}});
+}