refactor XCS signature

Author: BJNFNE

db/Binary/text.XCS.1.sg renamed to db/Binary/bin.XCS.1.sg

@@ -2,13 +2,16 @@
 // Author: BJNFNE <[email protected]>
 
 // https://wiki.multimedia.cx/index.php/Engines/XPAT#XCS
-meta("source", "XCS");
+meta("format", "XPAT Compiled Script (.XCS)");
 
 function detect() {
     if (Binary.compare("58 43 53")) {
-        sName = "XPAT Compiled Script";
-        bDetected = true;
-    }
+        var platform = Binary.getString(4, 2).trim();
 
+    if (/^[A-Z]{2}$/.test(platform)) {
+            sVersion = platform;
+            bDetected = true;
+    }
+}
     return result();
 }