Add explanatory comment

Author: ba32107

src/cli/TextStream.cpp

@@ -60,6 +60,10 @@ TextStream::TextStream(const QByteArray& array, QIODevice::OpenMode openMode)
 
 void TextStream::write(const char* str)
 {
+    // Workaround for an issue with QTextStream. Its operator<<(const char *string) will encode the
+    // string with a non-UTF-8 encoding. We work around this by wrapping the input string into
+    // a QString, thus enforcing UTF-8. More info:
+    // https://code.qt.io/cgit/qt/qtbase.git/commit?id=cec8cdba4d1b856e17c8743ba8803349d42dc701
     *this << QString(str);
 }