Change LOG() macro to be varadic

This changes the LOG macro to be varadic removing the need for all
callsites to have double bracketing and allows for future improvement
on how we use the logging macros.

The callsites were changed with coccinelle and the changes checked by
hand. Compile tested for several frontends but not all.

A formatting annotation has also been added which allows the compiler
to check the parameters and types passed to the logging.

1 files changed, 1 insertions, 1 deletions

diff --git a/render/html_interaction.c b/render/html_interaction.c
index c2cca60e2..6e2a2df4c 100644
--- a/render/html_interaction.c
+++ b/render/html_interaction.c
@@ -272,7 +272,7 @@ static void html__image_coords_dom_user_data_handler(dom_node_operation operatio
 		free(coords);
 		break;
 	default:
-		LOG(("User data operation not handled."));
+		LOG("User data operation not handled.");
 		assert(0);
 	}
 }