From eb909c4e433087b466e78d33af8eed47adcabf16 Mon Sep 17 00:00:00 2001
From: Nick Mathewson <nickm@torproject.org>
Date: Thu, 5 Sep 2019 07:57:36 -0400
Subject: config: note that some arguments are required.

---
 src/app/config/confparse.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/app/config/confparse.c b/src/app/config/confparse.c
index b0ff4daa83..054d2addbd 100644
--- a/src/app/config/confparse.c
+++ b/src/app/config/confparse.c
@@ -581,6 +581,8 @@ config_mark_lists_fragile(const config_mgr_t *mgr, void *options)
 /**
  * Log a warning that declaring that the option called <b>what</b>
  * is deprecated because of the reason in <b>why</b>.
+ *
+ * (Both arguments must be non-NULL.)
  **/
 void
 warn_deprecated_option(const char *what, const char *why)
-- 
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