From 04ce0d88ca146962311743812a18819ae55fc9ae Mon Sep 17 00:00:00 2001
From: Pieter Wuille <pieter.wuille@gmail.com>
Date: Mon, 30 Jul 2018 00:14:18 -0700
Subject: Report when unknown config file options are ignored

---
 src/util.cpp | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/src/util.cpp b/src/util.cpp
index 2f81f50a71..238554ee4a 100644
--- a/src/util.cpp
+++ b/src/util.cpp
@@ -859,9 +859,13 @@ bool ArgsManager::ReadConfigStream(std::istream& stream, std::string& error, boo
         }
 
         // Check that the arg is known
-        if (!IsArgKnown(strKey) && !ignore_invalid_keys) {
-            error = strprintf("Invalid configuration value %s", option.first.c_str());
-            return false;
+        if (!IsArgKnown(strKey)) {
+            if (!ignore_invalid_keys) {
+                error = strprintf("Invalid configuration value %s", option.first.c_str());
+                return false;
+            } else {
+                LogPrintf("Ignoring unknown configuration value %s\n", option.first);
+            }
         }
     }
     return true;
-- 
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