requests: fix uninitialized var

init char whose address is passed for a 0-length buffer, clang does not
like it

Refs #18418
Closes #18420

diff --git a/lib/request.c b/lib/request.c
index 733e3e92947908a93674e88e96e415ce4aa9c4bc..8751ada55987b60a0caa072598a2ea58f780371a 100644 (file)
--- a/lib/request.c
+++ b/lib/request.c
@@ -308,7 +308,7 @@ static CURLcode req_flush(struct Curl_easy *data)
   }
 
   if(data->req.eos_read && !data->req.eos_sent) {
-    char tmp;
+    char tmp = 0;
     size_t nwritten;
     result = xfer_send(data, &tmp, 0, 0, &nwritten);
     if(result)