Re-order service startup (Jack Server Settings)

src/SysExec.hpp

@@ -24,4 +24,7 @@ namespace pipedal {
 // exec a command, returning the actual exit code (unlike execXX() or system() )
 int SysExec(const char*szCommand);
 
+// execute a command, suppressing output.
+void SilentSysExec(const char *szCommand);
+
 }