From 5369b0c7eac1711653aeecb8fcb8ca3a5f5fdfc1 Mon Sep 17 00:00:00 2001
From: ZyX <kp-pav@yandex.ru>
Date: Mon, 23 Jan 2017 02:05:17 +0300
Subject: [PATCH] coverity/155511: Pass correct length argument to strncat()

---
 src/nvim/ex_cmds.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/nvim/ex_cmds.c b/src/nvim/ex_cmds.c
index 69eed33736..da629cd4a1 100644
--- a/src/nvim/ex_cmds.c
+++ b/src/nvim/ex_cmds.c
@@ -1408,8 +1408,8 @@ char_u *make_filter_cmd(char_u *cmd, char_u *itmp, char_u *otmp)
   }
 
   if (itmp != NULL) {
-    strncat(buf, " < ", len);
-    strncat(buf, (char *) itmp, len);
+    strncat(buf, " < ", len - 1);
+    strncat(buf, (const char *)itmp, len - 1);
   }
 #else
   // For shells that don't understand braces around commands, at least allow