CMakeRunPage: Fix appending of error messages

Change-Id: I2b1c54bbe948ca8b3ba5384a2e97e29b2fd878c9
Task-number: QTCREATORBUG-14439
Reviewed-by: Tobias Hunger <tobias.hunger@theqtcompany.com>

src/plugins/cmakeprojectmanager/cmakeopenprojectwizard.cpp

@@ -682,6 +682,7 @@ void CMakeRunPage::cmakeReadyReadStandardOutput()
 void CMakeRunPage::cmakeReadyReadStandardError()
 {
     QTextCursor cursor(m_output->document());
+    cursor.movePosition(QTextCursor::End);
     QTextCharFormat tf;
 
     QFont font = m_output->font();