From bec50cc285995b18d57e5e5caf17e33100795f09 Mon Sep 17 00:00:00 2001
From: Daniel Stenberg <daniel@haxx.se>
Date: Sun, 17 Sep 2017 23:31:49 +0200
Subject: mime:escape_string minor clarification change

... as it also removes a warning with old gcc versions.

Bug: https://curl.haxx.se/mail/lib-2017-09/0049.html
Reported-by: Ben Greear
---
 lib/mime.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/lib/mime.c b/lib/mime.c
index 9f3d40f1a..312094d7f 100644
--- a/lib/mime.c
+++ b/lib/mime.c
@@ -296,9 +296,12 @@ static char *escape_string(const char *src, size_t len)
   for(i = 0; len; len--) {
     char c = *src++;
 
-    if(c == '"' || c == '\\' || !c)
+    if(c == '"' || c == '\\' || !c) {
       dst[i++] = '\\';
-    dst[i++] = c? c: '0';
+      if(!c)
+        c = '0';
+    }
+    dst[i++] = c;
   }
 
   dst[i] = '\0';
-- 
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