Fix warning about wrong enumeration type (#471)

Author: dl1jbe

src/sendqrg.c

@@ -266,7 +266,7 @@ static enum tlf_debug_level rig2tlf_debug(enum rig_debug_level_e lvl) {
 
 /* convert Tlf debug levels into Hamlib ones */
 static enum rig_debug_level_e tlf2rig_debug(enum tlf_debug_level lvl) {
-    enum tlf_debug_level level;
+    enum rig_debug_level_e level;
     switch (lvl) {
 	case TLF_DBG_ERR:
 	    level = RIG_DEBUG_ERR;