From: alexpantyukhin <apantykhin@gmail.com>
Date: Tue, 5 Sep 2017 11:48:56 +0000 (+0400)
Subject: flag: simplify arg logic in parseOne
X-Git-Tag: go1.10beta1~1219
X-Git-Url: http://www.git.cypherpunks.su/?a=commitdiff_plain;h=2d362f7a4917057d6790ddeba1742f009c13feeb;p=gostls13.git

flag: simplify arg logic in parseOne

Fixes #21763.

Change-Id: I59ee4f24c8064df64d9ede11aac02bc7ce4995b3
Reviewed-on: https://go-review.googlesource.com/61491
Reviewed-by: Daniel Martí <mvdan@mvdan.cc>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Daniel Martí <mvdan@mvdan.cc>
TryBot-Result: Gobot Gobot <gobot@golang.org>
---

diff --git a/src/flag/flag.go b/src/flag/flag.go
index 36e0550030..a1a8dc7fad 100644
--- a/src/flag/flag.go
+++ b/src/flag/flag.go
@@ -839,7 +839,7 @@ func (f *FlagSet) parseOne() (bool, error) {
 		return false, nil
 	}
 	s := f.args[0]
-	if len(s) == 0 || s[0] != '-' || len(s) == 1 {
+	if len(s) < 2 || s[0] != '-' {
 		return false, nil
 	}
 	numMinuses := 1