Use StartSync in JackMessageBuffer

git-svn-id: http://subversion.jackaudio.org/jack/jack2/trunk/jackmp@2360 0c269be4-1314-0410-8aa9-9f06e86f4224

common/JackMessageBuffer.cpp

@@ -41,7 +41,7 @@ JackMessageBuffer::JackMessageBuffer():fInBuffer(0),fOutBuffer(0),fOverruns(0)
     fThread = JackGlobals::MakeThread(this); 
     fSignal = JackGlobals::MakeInterProcessSync(); 
     fMutex = new JackMutex(); 
-    fThread->Start();
+    fThread->StartSync();
 }
 
 JackMessageBuffer::~JackMessageBuffer()