Delete unused assignment. (#112)

Author: arturobernalg

src/main/java/org/apache/commons/cli/OptionBuilder.java

@@ -97,7 +97,7 @@ public static Option create(final char opt) throws IllegalArgumentException {
      * @throws IllegalArgumentException if {@code opt} is not a valid character. See Option.
      */
     public static Option create(final String opt) throws IllegalArgumentException {
-        Option option = null;
+        Option option;
         try {
             // create the option
             option = new Option(opt, description);

src/main/java/org/apache/commons/cli/PatternOptionBuilder.java

@@ -170,7 +170,6 @@ public static Options parsePattern(final String pattern) {
                     options.addOption(option);
                     required = false;
                     type = null;
-                    opt = ' ';
                 }
 
                 opt = ch;