diff --git a/cli/main.go b/cli/main.go
index 1ddc8697c..38a75f4a9 100644
--- a/cli/main.go
+++ b/cli/main.go
@@ -21,7 +21,8 @@ var (
 	commit  = "none"
 	date    = "unknown"
 	builtBy = "unknown"
-	AppFs   = afero.NewOsFs()
+	//used to operations (checking path etc) related with user config files
+    AppFs   = afero.NewOsFs()
 )
 
 func fail(err string) {
diff --git a/lint/config.go b/lint/config.go
index b0ccd8728..7e51a93c2 100644
--- a/lint/config.go
+++ b/lint/config.go
@@ -33,8 +33,8 @@ func (rc *RuleConfig) Initialize() error {
 type RulesConfig = map[string]RuleConfig
 
 // MustExclude - checks if given filename `name` must be excluded
-func (rcfg *RuleConfig) MustExclude(name string) bool {
-	for _, exclude := range rcfg.excludeFilters {
+func (rc *RuleConfig) MustExclude(name string) bool {
+	for _, exclude := range rc.excludeFilters {
 		if exclude.MatchFileName(name) {
 			return true
 		}