Fix several strerror that should be rigerror

rigs/icom/frame.c

@@ -324,7 +324,7 @@ int icom_transaction(RIG *rig, int cmd, int subcmd,
 
     if (retval != RIG_OK)
     {
-        rig_debug(RIG_DEBUG_VERBOSE, "%s: failed: %s\n", __func__, strerror(retval));
+        rig_debug(RIG_DEBUG_VERBOSE, "%s: failed: %s\n", __func__, rigerror(retval));
     }
 
     return retval;

rigs/icom/icom.c

@@ -1107,7 +1107,7 @@ int icom_get_freq(RIG *rig, vfo_t vfo, freq_t *freq)
         if (retval != RIG_OK)
         {
             rig_debug(RIG_DEBUG_ERR, "%s: set_vfo failed? retval=%s\n", __func__,
-                      strerror(retval));
+                      rigerror(retval));
         }
     }
 

rigs/kenwood/ic10.c

@@ -819,7 +819,7 @@ int ic10_set_channel(RIG *rig, const channel_t *chan)
         if (retval != RIG_OK)
         {
             rig_debug(RIG_DEBUG_ERR, "%s: transaction failed: %s\n", __func__,
-                      strerror(retval));
+                      rigerror(retval));
             return retval;
         }
     }

rigs/yaesu/ft890.c

@@ -1313,7 +1313,7 @@ static int ft890_set_rit(RIG *rig, vfo_t vfo, shortfreq_t rit)
         if (err != RIG_OK)
         {
             rig_debug(RIG_DEBUG_ERR, "%s: clarifier off error: %s\n", __func__,
-                      strerror(err));
+                      rigerror(err));
         }
 
         return err;

rigs/yaesu/ft900.c

@@ -1319,7 +1319,7 @@ static int ft900_set_rit(RIG *rig, vfo_t vfo, shortfreq_t rit)
         if (err != RIG_OK)
         {
             rig_debug(RIG_DEBUG_ERR, "%s: clarifier off error: %s\n", __func__,
-                      strerror(err));
+                      rigerror(err));
         }
 
         return err;

src/rig.c

@@ -1818,7 +1818,7 @@ int HAMLIB_API rig_set_vfo(RIG *rig, vfo_t vfo)
     }
     else
     {
-	rig_debug(RIG_DEBUG_ERR, "%s: set_vfo failed with '%s'\n", __func__, strerror(retcode));
+	rig_debug(RIG_DEBUG_ERR, "%s: set_vfo %s failed with '%s'\n", __func__, rig_strvfo(vfo), rigerror(retcode));
     }
 
     // we need to update our internal freq to avoid getting detected as twiddling