From be0cc4b8715d2a57f03b395ae928db61048bb679 Mon Sep 17 00:00:00 2001
From: Lynn Cyrin <lynncyrin@gmail.com>
Date: Tue, 1 Oct 2019 20:18:53 -0700
Subject: [PATCH] add a check

---
 command.go | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/command.go b/command.go
index 70502e8..d41a1bf 100644
--- a/command.go
+++ b/command.go
@@ -261,6 +261,10 @@ func argIsFlag(commandFlags []Flag, arg string) bool {
 	if arg == "-" {
 		return false
 	}
+	// flags always start with a -
+	if !strings.HasPrefix(arg, "-") {
+		return false
+	}
 	// this line turns `--flag` into `flag`
 	if strings.HasPrefix(arg, "--") {
 		arg = strings.Replace(arg, "-", "", 2)