test1520: Fixed initial teething problems

* Missing initialisation of upload status caused a seg fault
* Missing data termination caused corrupt data to be uploaded
* Data verification should be performed in <upload> element
* Added missing recipient list cleanup

tests/data/test1520

@@ -44,6 +44,9 @@ EHLO 1520
 MAIL FROM:<sender@example.com>
 RCPT TO:<recipient@example.com>
 DATA
+QUIT
+</protocol>
+<upload>
 From: different
 To: another
 
@@ -54,6 +57,7 @@ To: another
 ..
 
 body
-</protocol>
+.
+</upload>
 </verify>
 </testcase>

tests/libtest/lib1520.c

@@ -39,7 +39,8 @@ static const char *payload_text[] = {
   "\r\n",
   ".\r\n",
   "\r\n",
-"body"
+  "body",
+  NULL
 };
 
 struct upload_status {
@@ -103,6 +104,7 @@ int test(char *URL)
 
 test_cleanup:
 
+  curl_slist_free_all(rcpt_list);
   curl_easy_cleanup(curl);
   curl_global_cleanup();