minor update

git-svn-id: https://svn.code.sf.net/p/jackcess/code/jackcess/trunk@1184 f203690c-595d-4dc9-a70b-905162fa7fd2

src/main/java/com/healthmarketscience/jackcess/impl/expr/ExpressionTokenizer.java

@@ -80,6 +80,8 @@ class ExpressionTokenizer
     setCharFlag(IS_QUOTE_FLAG, '"', '#', '[', ']', '\'');
   }
 
+  private ExpressionTokenizer() {}
+
   /**
    * Tokenizes an expression string of the given type and (optionally) in the
    * context of the relevant database.