add a space at the end of the question, so that the answer is separated:

before: [Y/n]y
now: [Y/n] y

queueoperation.cpp

@@ -329,7 +329,7 @@ void QueueOperation::validationFinished(bool valid)
         out << QObject::tr("Freed size after transaction: %1").arg(Akabei::Helpers::formatByteSize(installSize * (-1))) << endl;
     }
 
-    out << QObject::tr("Continue with processing? [Y/n]");
+    out << QObject::tr("Continue with processing? [Y/n] ");
     out.flush();
     if (!m_options.contains(APM::NoConfirm)) {
         std::string input;