Replacing format strings with magic

config.go

@@ -1,7 +1,6 @@
 package main
 
 import (
-	"fmt"
 	"os"
 	"path/filepath"
 	"strings"
@@ -67,7 +66,9 @@ func init() {
 func loadAndwatchCfgFile(filename string) {
 	provider := file.Provider(filename)
 
-	loadCfg(provider)
+	if cfgError := k.Load(provider, toml.Parser()); cfgError != nil {
+		log.Warn().Str("filename", filename).Err(cfgError).Msg("Error while trying to read config file")
+	}
 
 	// Watch for changes and reload when detected
 	provider.Watch(func(_ interface{}, err error) {
@@ -75,20 +76,12 @@ func loadAndwatchCfgFile(filename string) {
 			return
 		}
 
-		loadCfg(provider)
+		if cfgError := k.Load(provider, toml.Parser()); cfgError != nil {
+			log.Warn().Str("filename", filename).Err(cfgError).Msg("Error while trying to read config file")
+		}
 	})
 }
 
-func loadCfg(provider *file.File) {
-	fmt.Println("%#v\n", provider) // &file.File{path:"/etc/itd.toml"}
-	filename := ""
-	filename = provider.path // provider.path undefined (type *file.File has no field or method path)
-	filename = (*provider).path // (*provider).path undefined (type file.File has no field or method path)
-	if cfgError := k.Load(provider, toml.Parser()); cfgError != nil {
-		log.Warn().Msg(fmt.Sprintf("Error while trying to read %s: %s\n", filename, cfgError.Error()))
-	}
-}
-
 func setCfgDefaults() {
 	k.Load(confmap.Provider(map[string]interface{}{
 		"bluetooth.adapter": "hci0",