Migrate Sirupsen to sirupsen.

vendor/github.com/docker/cli/opts/quotedstring.go

@@ -0,0 +1,37 @@
+package opts
+
+// QuotedString is a string that may have extra quotes around the value. The
+// quotes are stripped from the value.
+type QuotedString struct {
+	value *string
+}
+
+// Set sets a new value
+func (s *QuotedString) Set(val string) error {
+	*s.value = trimQuotes(val)
+	return nil
+}
+
+// Type returns the type of the value
+func (s *QuotedString) Type() string {
+	return "string"
+}
+
+func (s *QuotedString) String() string {
+	return *s.value
+}
+
+func trimQuotes(value string) string {
+	lastIndex := len(value) - 1
+	for _, char := range []byte{'\'', '"'} {
+		if value[0] == char && value[lastIndex] == char {
+			return value[1:lastIndex]
+		}
+	}
+	return value
+}
+
+// NewQuotedString returns a new quoted string option
+func NewQuotedString(value *string) *QuotedString {
+	return &QuotedString{value: value}
+}