produce valid apib file

Author: s-mang

doc/body.go

@@ -83,5 +83,6 @@ func (b *Body) SanitizedMultipartForm() string {
 		}
 	}
 
-	return string(bytes.Join(parts, []byte(boundary)))
+	out := string(bytes.Join(parts, []byte(boundary)))
+	return strings.Replace(out, "\n", "\n            ", -1)
 }

doc/util.go

@@ -35,6 +35,9 @@ func cloneBody(r io.ReadCloser) (*bytes.Buffer, *bytes.Buffer, error) {
 func CopyHeader(dst, src http.Header) {
 	for k, vv := range src {
 		for _, v := range vv {
+			if v == "" {
+				v = "''" // to make the apiary doc valid
+			}
 			dst.Add(k, v)
 		}
 	}