Only populate XPOS column

Change-Id: I0606660bcf260a92d414179a6a87978a85ad8797
diff --git a/src/index.js b/src/index.js
index 1a368fb..78d3c9b 100755
--- a/src/index.js
+++ b/src/index.js
@@ -121,7 +121,7 @@
     new_tag = 'ADR';
   }
   if (new_tag) {
-    columns[3] = columns[4] = new_tag;
+    columns[4] = new_tag;
     columns[5] = '_';
     if (global.standalone) {
       process.stdout.write(fileheader);