Log extension is .tlog, use number month in filename

src/QGCApplication.cc

@@ -506,8 +506,8 @@ void QGCApplication::saveTelemetryLogOnMainThread(QString tempLogfile)
         QString saveDirPath = _toolbox->settingsManager()->appSettings()->telemetrySavePath()->rawValue().toString();
         QDir saveDir(saveDirPath);
 
-        QString nameFormat("%1%2.mavlink");
-        QString dtFormat("yyyy-MMM-dd hh-mm-ss");
+        QString nameFormat("%1%2.tlog");
+        QString dtFormat("yyyy-MM-dd hh-mm-ss");
 
         int tryIndex = 1;
         QString saveFileName = nameFormat.arg(QDateTime::currentDateTime().toString(dtFormat)).arg("");

src/comm/LogReplayLink.cc

@@ -202,7 +202,7 @@ bool LogReplayLink::_loadLogFile(void)
     logFileInfo.setFile(logFilename);
     _logFileSize = logFileInfo.size();
     
-    _logTimestamped = logFilename.endsWith(".mavlink");
+    _logTimestamped = logFilename.endsWith(".tlog");
     
     if (_logTimestamped) {
         // Get the first timestamp from the log

src/ui/QGCMAVLinkLogPlayer.cc

@@ -73,7 +73,7 @@ void QGCMAVLinkLogPlayer::_selectLogFileForPlayback(void)
         this,
         tr("Load MAVLink Log File"),
         QStandardPaths::writableLocation(QStandardPaths::DocumentsLocation),
-        tr("MAVLink Log Files (*.mavlink);;All Files (*)"));
+        tr("MAVLink Log Files (*.tlog);;All Files (*)"));
 
     if (logFilename.isEmpty()) {
         return;