From 13f62ead1bc734e6c96709b32039c0cc3e462dae Mon Sep 17 00:00:00 2001
From: Carles Fernandez <carles.fernandez@gmail.com>
Date: Mon, 21 May 2018 22:18:19 +0200
Subject: [PATCH] Fix warning in gcc 8.1.0

---
 src/tests/common-files/gnuplot_i.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/tests/common-files/gnuplot_i.h b/src/tests/common-files/gnuplot_i.h
index 6bb6d7d4f..549230c4a 100644
--- a/src/tests/common-files/gnuplot_i.h
+++ b/src/tests/common-files/gnuplot_i.h
@@ -1967,7 +1967,7 @@ bool Gnuplot::get_program_path()
     size_t len = strlen(path);
     if (path && len < 4046 * sizeof(char))
         {
-            strncpy(secured_path, path, len);
+            strncpy(secured_path, path, len - 1);
         }
     else
         {