Address translation feedback from Transifex

src/updatecheck/UpdateChecker.cpp

@@ -27,6 +27,7 @@
 #include <QJsonObject>
 #include <QRegularExpression>
 
+const QString UpdateChecker::ErrorVersion("error");
 UpdateChecker* UpdateChecker::m_instance(nullptr);
 
 UpdateChecker::UpdateChecker(QObject* parent)
@@ -104,7 +105,7 @@ void UpdateChecker::fetchFinished()
         // TODO: change to toSecsSinceEpoch() when min Qt >= 5.8
         config()->set(Config::GUI_CheckForUpdatesNextCheck, Clock::currentDateTime().addDays(7).toTime_t());
     } else {
-        version = "error";
+        version = ErrorVersion;
     }
 
     emit updateCheckFinished(hasNewVersion, version, m_isManuallyRequested);

src/updatecheck/UpdateChecker.h

@@ -33,6 +33,8 @@ public:
     static bool compareVersions(const QString& localVersion, const QString& remoteVersion);
     static UpdateChecker* instance();
 
+    static const QString ErrorVersion;
+
 signals:
     void updateCheckFinished(bool hasNewVersion, QString version, bool isManuallyRequested);