No need for "UNDEFINED" handling re Ctags argv

Author: idodeclare

opengrok-indexer/src/main/java/org/opengrok/indexer/index/Indexer.java

@@ -1129,11 +1129,7 @@ private static String getCtagsCommand() {
                 result.append("\t");
             }
             String arg = argv.get(i);
-            if (arg == null) {
-                result.append("UNDEFINED");
-            } else {
-                result.append(maybeEscapeForSh(arg));
-            }
+            result.append(maybeEscapeForSh(arg));
             if (i + 1 < argv.size()) {
                 result.append(" \\");
             }