close file explicitly, to avoid "max open files" error

lance6716 · web-flow · commit e6ab97fb4761 · 2021-06-24T15:00:33.000+08:00
diff --git a/errcheck/errcheck.go b/errcheck/errcheck.go
@@ -543,6 +543,7 @@ func readfile(filename string) []string {
 	if err != nil {
 		return nil
 	}
+	defer f.Close()
 
 	var lines []string
 	var scanner = bufio.NewScanner(f)

Original file line number	Diff line number	Diff line change
`@@ -543,6 +543,7 @@ func readfile(filename string) []string {`
`543`	`543`	`if err != nil {`
`544`	`544`	`return nil`
`545`	`545`	`}`
	`546`	`+ defer f.Close()`
`546`	`547`
`547`	`548`	`var lines []string`
`548`	`549`	`var scanner = bufio.NewScanner(f)`