janitor - fix function protype

diff --git a/cmd/tools/gvgen.c b/cmd/tools/gvgen.c
index eea4c44a8e980c065c61ef7897fad9194781505e..5a8d99e60fadf09b068c91df1f698d2eeed2f6ce 100644 (file)
--- a/cmd/tools/gvgen.c
+++ b/cmd/tools/gvgen.c
@@ -451,7 +451,7 @@ static void undirfn (int t, int h)
 }
 
 static void
-closeOpen ()
+closeOpen (void)
 {
     if (opts.directed)
        fprintf(opts.outfile, "}\ndigraph {\n");