Avoid non-ANSI function declarations

Sparse says things like:

	warning: non-ANSI function declaration of function 'calc_ttl'

Signed-off-by: John Keeping <john@keeping.me.uk>

1 files changed, 1 insertions, 1 deletions

diff --git a/ui-summary.c b/ui-summary.c
index fa5ba04..b0af073 100644
--- a/ui-summary.c
+++ b/ui-summary.c
@@ -40,7 +40,7 @@ static void print_url(const char *url)
         html("</a></td></tr>\n");
 }
 
-void cgit_print_summary()
+void cgit_print_summary(void)
 {
         int columns = 3;