Correctly initialize sf2 gain on startup

git-svn-id: https://lmms.svn.sf.net/svnroot/lmms/trunk/lmms@1196 0778d3d1-df1d-0410-868b-ea421aaaa00d

plugins/sf2_player/sf2_player.cpp

@@ -118,6 +118,7 @@ sf2Instrument::sf2Instrument( instrumentTrack * _instrument_track ) :
 	updateReverb();
 	updateChorusOn();
 	updateChorus();
+	updateGain();
 
 	
 	connect( &m_bankNum, SIGNAL( dataChanged() ),
@@ -164,6 +165,7 @@ sf2Instrument::sf2Instrument( instrumentTrack * _instrument_track ) :
 
 	connect( &m_chorusDepth, SIGNAL( dataChanged() ),
 			this, SLOT( updateChorus() ) );
+
 }