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doc: clarify interaction of ioutil.WriteFile with umask #35836

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doc: clarify interaction of ioutil.WriteFile with umask #35836

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4 changes: 2 additions & 2 deletions src/io/ioutil/ioutil.go
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Original file line number Diff line number Diff line change
Expand Up @@ -74,8 +74,8 @@ func ReadFile(filename string) ([]byte, error) {
}

// WriteFile writes data to a file named by filename.
// If the file does not exist, WriteFile creates it with permissions perm;
// otherwise WriteFile truncates it before writing.
// If the file does not exist, WriteFile creates it with permissions perm
// (before umask); otherwise WriteFile truncates it before writing.
func WriteFile(filename string, data []byte, perm os.FileMode) error {
f, err := os.OpenFile(filename, os.O_WRONLY|os.O_CREATE|os.O_TRUNC, perm)
if err != nil {
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