From 28ee3895c3bc2d373cd3b4dc9aa108579a0a8f0f Mon Sep 17 00:00:00 2001
From: "Earle F. Philhower, III" <earlephilhower@yahoo.com>
Date: Wed, 28 Nov 2018 20:36:59 -0800
Subject: [PATCH] Save 2.3K in HTTPClient debug mode by PSTR

Convert the HTTPClient debug macro to store strings in PROGMEM and
use the printf_P method to dump them.

Saves ~2.3KB heap when in debug mode.
---
 libraries/ESP8266HTTPClient/src/ESP8266HTTPClient.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libraries/ESP8266HTTPClient/src/ESP8266HTTPClient.h b/libraries/ESP8266HTTPClient/src/ESP8266HTTPClient.h
index fb9cfa8736..d2768d85b4 100644
--- a/libraries/ESP8266HTTPClient/src/ESP8266HTTPClient.h
+++ b/libraries/ESP8266HTTPClient/src/ESP8266HTTPClient.h
@@ -35,7 +35,7 @@
 
 #ifdef DEBUG_ESP_HTTP_CLIENT
 #ifdef DEBUG_ESP_PORT
-#define DEBUG_HTTPCLIENT(...) DEBUG_ESP_PORT.printf( __VA_ARGS__ )
+#define DEBUG_HTTPCLIENT(fmt, ...) DEBUG_ESP_PORT.printf_P( (PGM_P)PSTR(fmt), ## __VA_ARGS__ )
 #endif
 #endif