From 51bc9f243a0b60205985b42bb47f174379a463c6 Mon Sep 17 00:00:00 2001
From: "Justin M. Keyes" <justinkz@gmail.com>
Date: Wed, 22 Mar 2017 00:22:45 +0100
Subject: [PATCH] ex_tabnext: Disallow "+NN" arg.

Need to do this explicitly because our implementation of getdigits() is
slightly different.
---
 src/nvim/ex_docmd.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/nvim/ex_docmd.c b/src/nvim/ex_docmd.c
index a06c6a89c8..d815d57a60 100644
--- a/src/nvim/ex_docmd.c
+++ b/src/nvim/ex_docmd.c
@@ -6602,7 +6602,8 @@ static void ex_tabnext(exarg_T *eap)
       char_u *p_save = p;
 
       tab_number = getdigits(&p);
-      if (p == p_save || *p_save == '-' || *p != NUL || tab_number == 0) {
+      if (p == p_save || *p_save == '-' || *p_save == '+' || *p != NUL
+          || tab_number == 0) {
         // No numbers as argument.
         eap->errmsg = e_invarg;
         return;