other part of fix for 46488 - fix mac build scripts to use NS_LITERAL_STRING so we have a unicode build date.

build/mac/build_scripts/MozillaBuildList.pm

@@ -1410,7 +1410,7 @@ sub BuildLayoutProjects()
     my($sec,$min,$hour,$mday,$mon,$year,$wday,$yday,$isdst) = localtime;
     # localtime returns year minus 1900
     $year = $year + 1900;
-    printf(OUTPUT "#define PRODUCT_VERSION \"%04d%02d%02d\"\n", $year, 1+$mon, $mday);
+    printf(OUTPUT "#define PRODUCT_VERSION NS_LITERAL_STRING(\"%04d%02d%02d\").get()\n", $year, 1+$mon, $mday);
     close(OUTPUT);
 
     #//