Merge pull request #12153 from joeshannon/java-date-options-typo

Fix typo in Java date options help string

Author: HugoMario

modules/swagger-codegen/src/main/java/io/swagger/codegen/languages/AbstractJavaCodegen.java

@@ -193,7 +193,7 @@ public AbstractJavaCodegen() {
         dateOptions.put("java8-localdatetime", "Java 8 using LocalDateTime (for legacy app only)");
         dateOptions.put("java8-instant", "Java 8 using Instant");
         dateOptions.put("joda", "Joda (for legacy app only)");
-        dateOptions.put("legacy", "Legacy java.util.Date (if you really have a good reason not to use threetenbp");
+        dateOptions.put("legacy", "Legacy java.util.Date (if you really have a good reason not to use threetenbp)");
         dateLibrary.setEnum(dateOptions);
         cliOptions.add(dateLibrary);