Fix comment to match reality

lo_runLoop() *is* used in the "Unipoll" case (i.e. current Online and
mobile apps).

Change-Id: I01ef3d8bc8140531f697952ef142150fc905a8d4

desktop/source/lib/init.cxx

@@ -4621,7 +4621,7 @@ static void lo_startmain(void*)
     Application::ReleaseSolarMutex();
 }
 
-// pre-unipoll version.
+// unipoll version.
 static void lo_runLoop(LibreOfficeKit* /*pThis*/,
                        LibreOfficeKitPollCallback pPollCallback,
                        LibreOfficeKitWakeCallback pWakeCallback,