Close the file after reading in verifydependencies#main

cmd/verifydependencies/verifydependencies.go

@@ -72,10 +72,12 @@ func main() {
 
 	for _, dep := range externalDeps.Dependencies {
 		for _, refPath := range dep.RefPaths {
+			func() {
 				file, err := os.Open(refPath.Path)
 				if err != nil {
 					log.Fatalf("error opening file %v : %v", refPath.Path, err)
 				}
+				defer file.Close()
 				matcher := regexp.MustCompile(refPath.Match)
 				depFileScanner := bufio.NewScanner(file)
 				var found bool
@@ -89,6 +91,7 @@ func main() {
 				if !found {
 					pathsToUpdate = append(pathsToUpdate, refPath.Path)
 				}
+			}()
 		}
 		if len(pathsToUpdate) > 0 {
 			log.Fatalf(mismatchErrorMessage, externalDepsFilePath, dep.Name, dep.Version, strings.Join(pathsToUpdate, "\n"), dep.Name, externalDepsFilePath)