init: Fix segfault when log_write() was missing an arg to format.

Also, flag log_write() as a printf-like beast to gcc.

Signed-off-by: Dima Zavin <dima@android.com>
diff --git a/init/init.c b/init/init.c
index b8b4f40..a748ec3 100644
--- a/init/init.c
+++ b/init/init.c
@@ -421,7 +421,7 @@
     if (svc) {
         service_stop(svc);
     } else {
-        ERROR("no such service '%s'\n");
+        ERROR("no such service '%s'\n", name);
     }
 }