graph: rrdtool seems to ignore the first argument

Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>

diff --git a/src/daemon/graph.c b/src/daemon/graph.c
index c0dfebf8165c2b167d181c5189711691e88758ea..8d6f7117eac568e404ac4cb8233dba0e8eb6e35e 100644 (file)
--- a/src/daemon/graph.c
+++ b/src/daemon/graph.c
@@ -47,6 +47,9 @@ struct td_graph {
 };
 
 const char* DEFAULT_RENDER_ARGS[] = {
+       // Placeholder because rrdtool seems to ignore the first argument
+       "--",
+
        // Change the background color
        "--color=BACK" COLOR_WITH_ALPHA(WHITE, OPACITY_100P),