use the corrected named functions of Synth_Dexed

https://codeberg.org/dcoredump/Synth_Dexed/pulls/12

src/minidexed.cpp

@@ -1169,7 +1169,7 @@ std::string CMiniDexed::GetVoiceName (unsigned nTG)
 	if (nTG < m_nToneGenerators)
 	{
 		assert (m_pTG[nTG]);
-		m_pTG[nTG]->setName (VoiceName);
+		m_pTG[nTG]->getName (VoiceName);
 	}
 	std::string Result (VoiceName);
 	return Result;
@@ -1992,7 +1992,7 @@ void CMiniDexed::SetVoiceName (const std::string &VoiceName, unsigned nTG)
 	char Name[11];
 	strncpy(Name, VoiceName.c_str(),10);
 	Name[10] = '\0';
-	m_pTG[nTG]->getName (Name);
+	m_pTG[nTG]->setName (Name);
 }
 
 bool CMiniDexed::DeletePerformance(unsigned nID)