root element rename to testsuite

cmd/go2junit/go2junit.go

@@ -68,9 +68,17 @@ func main() {
 		os.Exit(1)
 	}
 	filename := os.Args[1]
-
-	file, _ := os.Open(filename)
-	defer file.Close()
+	var file *os.File
+	if filename != "-" {
+		file2, err := os.Open(filename)
+		file = file2
+		if err != nil {
+			panic(err)
+		}
+		defer file.Close()
+	} else {
+		file = os.Stdin
+	}
 
 	scanner := bufio.NewScanner(file)
 	lineno := 0

cmd/go2junit/output.go

@@ -8,7 +8,7 @@ import (
 )
 
 type Testsuites struct {
-	XMLName xml.Name `xml:"testsuites"`
+	XMLName xml.Name `xml:"testsuite"`
 
 	Tests    int `xml:"tests,attr"`
 	Failures int `xml:"failures,attr"`