filter: return on null filter from open and close

So that we don't have to include the if(filter) open_filter(filter)
block everywhere, we introduce the guard in the function itself. This
should simplify quite a bit of code.

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>

1 file changed, 2 insertions, 4 deletions

diff --git a/ui-repolist.c b/ui-repolist.c
index 7b1fec3..f9cb21a 100644
--- a/ui-repolist.c
+++ b/ui-repolist.c
@@ -333,9 +333,7 @@ void cgit_print_site_readme()
 {
 	if (!ctx.cfg.root_readme)
 		return;
-	if (ctx.cfg.about_filter)
-		cgit_open_filter(ctx.cfg.about_filter, ctx.cfg.root_readme);
+	cgit_open_filter(ctx.cfg.about_filter, ctx.cfg.root_readme);
 	html_include(ctx.cfg.root_readme);
-	if (ctx.cfg.about_filter)
-		cgit_close_filter(ctx.cfg.about_filter);
+	cgit_close_filter(ctx.cfg.about_filter);
 }