update comment

[git-p4: depot-paths = "//depot/code/antlr4/main/": change = 9461]

runtime/Java/src/org/antlr/v4/runtime/BailErrorStrategy.java

@@ -29,7 +29,9 @@
 
 package org.antlr.v4.runtime;
 
-/** Bail out of parser at first syntax error */
+/** Bail out of parser at first syntax error. Do this to use it:
+ *      myparser.setErrorHandler(new BailErrorStrategy<Token>());
+ */
 public class BailErrorStrategy<Symbol> extends DefaultErrorStrategy<Symbol> {
     /** Instead of recovering from exception e, Re-throw wrote it wrapped
      *  in a generic RuntimeException so it is not caught by the