ExistingActivationKey: replace spaces by tab.

Should be in ba82718 commit.

No code changes.

Author: php-coder

src/main/java/ru/mystamps/web/support/beanvalidation/ExistingActivationKey.java

@@ -34,7 +34,7 @@
 @Constraint(validatedBy = ExistingActivationKeyValidator.class)
 @Documented
 public @interface ExistingActivationKey {
-        // CheckStyle: ignore LineLength for next 1 line
+	// CheckStyle: ignore LineLength for next 1 line
 	String message() default "{ru.mystamps.web.support.beanvalidation.ExistingActivationKey.message}";
 	Class<?>[] groups() default {};
 	Class<? extends Payload>[] payload() default {};