From 4e0cf6011e0da8bbaa9b9b63ea347e4dc59b9ca3 Mon Sep 17 00:00:00 2001
From: Petter Rasmussen
Date: Sat, 23 Jan 2016 10:57:13 +0100
Subject: Prevent mutation of input values

---
 cli/parser.go | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'cli')

diff --git a/cli/parser.go b/cli/parser.go
index 50bd0bd..5fbbe3f 100644
--- a/cli/parser.go
+++ b/cli/parser.go
@@ -330,7 +330,7 @@ func flagKeyValueMatch(key string, values []string, index int) ([]string, string
 
     if values[index] == key {
         value := values[index + 1]
-        remaining := append(values[:index], values[index + 2:]...)
+        remaining := append(copySlice(values[:index]), values[index + 2:]...)
         return remaining, value, true
     }
 
@@ -343,7 +343,7 @@ func flagKeyMatch(key string, values []string, index int) ([]string, bool) {
     }
 
     if values[index] == key {
-        remaining := append(values[:index], values[index + 1:]...)
+        remaining := append(copySlice(values[:index]), values[index + 1:]...)
         return remaining, true
     }
 
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