From 7e6a2a64f09df577f29e024c1d1e6733d6bc1b7c Mon Sep 17 00:00:00 2001
From: Yegappan Lakshmanan <yegappan@yahoo.com>
Date: Wed, 28 Jul 2021 11:51:48 +0200
Subject: patch 8.2.3232: system() does not work without a second argument

Problem:    system() does not work without a second argument.
Solution:   Do not require a second argument. (Yegappan Lakshmanan,
            closes #8651, closes #8650)
---
 src/typval.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

(limited to 'src/typval.c')

diff --git a/src/typval.c b/src/typval.c
index 34032177d..fb527e988 100644
--- a/src/typval.c
+++ b/src/typval.c
@@ -726,6 +726,17 @@ check_for_string_or_number_or_list_arg(typval_T *args, int idx)
     return OK;
 }
 
+/*
+ * Give an error and return FAIL unless "args[idx]" is an optional string
+ * or number or a list
+ */
+    int
+check_for_opt_string_or_number_or_list_arg(typval_T *args, int idx)
+{
+    return (args[idx].v_type == VAR_UNKNOWN
+	    || check_for_string_or_number_or_list_arg(args, idx) != FAIL);
+}
+
 /*
  * Give an error and return FAIL unless "args[idx]" is a string or a list
  * or a dict.
-- 
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