[epiphany] Silence -Wstring-op-truncation warning

[Michael Catanzaro <mcatanzaro src gnome org>]

commit 149921299dd5a0e480a802a23abd0ee9b42a1f29
Author: Michael Catanzaro <mcatanzaro igalia com>
Date:   Mon May 21 22:29:07 2018 -0500

    Silence -Wstring-op-truncation warning
    
    It's a false positive, because we add the NUL on the next line, but
    better to just fix the strncpy.

 lib/ephy-string.c |    3 +--
 1 files changed, 1 insertions(+), 2 deletions(-)
---
diff --git a/lib/ephy-string.c b/lib/ephy-string.c
index a1ea6d4..2bd71a9 100644
--- a/lib/ephy-string.c
+++ b/lib/ephy-string.c
@@ -119,8 +119,7 @@ ephy_string_shorten (char *str,
   new_str = g_new (gchar, bytes + strlen (ELLIPSIS) + 1);
 
   strncpy (new_str, str, bytes);
-  strncpy (new_str + bytes, ELLIPSIS, strlen (ELLIPSIS));
-  new_str[bytes + strlen (ELLIPSIS)] = '\0';
+  strncpy (new_str + bytes, ELLIPSIS, strlen (ELLIPSIS) + 1);
 
   g_free (str);