From 3b4640dee4f96937337f2941f8ed08d8b2f8628b Mon Sep 17 00:00:00 2001
From: Holger Vogt <holger.vogt@uni-due.de>
Date: Thu, 31 May 2018 10:24:09 +0200
Subject: [PATCH] _snprintf in Windows 7 does not automatically put a '\0' to
 the end of the buffer, only if there is space available. That will change in
 the future if Snprintf is used.

---
 src/frontend/plotting/grid.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/frontend/plotting/grid.c b/src/frontend/plotting/grid.c
index c7f1bacbf..7a5c41e74 100644
--- a/src/frontend/plotting/grid.c
+++ b/src/frontend/plotting/grid.c
@@ -527,7 +527,7 @@ drawlingrid(GRAPH *graph, char *units, int spacing, int nsp, double dst, double
         if (j == 0)
             SetLinestyle(1);
 
-        snprintf(buf, sizeof(buf), "%.*f", digits + 1, m * mag / 100.0);
+        snprintf(buf, sizeof(buf) - 1, "%.*f", digits + 1, m * mag / 100.0);
 
         if (axis == x_axis)
             DevDrawText(buf, graph->viewportxoff + i -