Add better boolean handling for StaticValue annotation

src/de/steamwar/command/SWCommandUtils.java

@@ -138,11 +138,11 @@ public class SWCommandUtils {
                 if (staticValue.allowISE()) {
                     if ((parameter.getType() == boolean.class || parameter.getType() == Boolean.class)) {
                         List<String> tabCompletes = new ArrayList<>(Arrays.asList(staticValue.value()));
-                        Set<Integer> trueValues = new HashSet<>();
-                        for (int i : staticValue.falseValues()) trueValues.add(i);
+                        Set<Integer> falseValues = new HashSet<>();
+                        for (int i : staticValue.falseValues()) falseValues.add(i);
                         return createMapper(s -> {
                             int index = tabCompletes.indexOf(s);
-                            return index == -1 ? null : !trueValues.contains(index);
+                            return index == -1 ? null : !falseValues.contains(index);
                         }, (commandSender, s) -> tabCompletes);
                     }
                     if ((parameter.getType() == int.class || parameter.getType() == Integer.class) && staticValue.value().length >= 2) {