Fix minor code style issues

Author: rubengees

library/src/main/java/me/proxer/library/api/apps/ErrorLogEndpoint.java

@@ -33,6 +33,9 @@ public final class ErrorLogEndpoint implements Endpoint<Void> {
         this.message = message;
     }
 
+    /**
+     * {@inheritDoc}
+     */
     @Override
     public ProxerCall<Void> build() {
         return internalApi.errorLog(id, message, anonym);

library/src/test/java/me/proxer/library/api/apps/ErrorLogEndpointTest.java

@@ -45,4 +45,4 @@ public void testParameters() throws IOException, ProxerException, InterruptedExc
 
         assertThat(server.takeRequest().getBody().readUtf8()).isEqualTo("id=3&message=test%20message&anonym=false");
     }
-}
+}