display message improve in run

Signed-off-by: Lifubang <lifubang@acmcoder.com>

cli/command/container/run.go

@@ -316,7 +316,10 @@ func attachContainer(
 // reportError is a utility method that prints a user-friendly message
 // containing the error that occurred during parsing and a suggestion to get help
 func reportError(stderr io.Writer, name string, str string, withHelp bool) {
-	str = strings.TrimSuffix(str, ".") + "."
+	puncRegexp := regexp.MustCompile(`[\n\r\!\.\?]$`)
+	if !puncRegexp.MatchString(str) {
+		str += "."
+	}
 	if withHelp {
 		str += "\nSee '" + os.Args[0] + " " + name + " --help'."
 	}