added a ast_verbose line to res_config_curl.c in *realtime_curl(const char *url

       /* Line oriented output */
        stringp = buffer;
        ast_verbose(VERBOSE_PREFIX_1 "res_config_curl: buffer is [%s]\n",buffer);


foxtrot*CLI>
    -- Executing [1571@from-sip:1] Goto("SIP/5706-090a70d0", "voicemail|vm1571|3") in new stack
    -- Goto (voicemail,vm1571,3)
    -- Executing [vm1571@voicemail:3] VoiceMailMain("SIP/5706-090a70d0", "") in new stack
    -- <SIP/5706-090a70d0> Playing 'vm-login' (language 'en')
 res_config_curl: buffer is []
    -- <SIP/5706-090a70d0> Playing 'vm-password' (language 'en')
    -- Incorrect password '0' for user '88' (context = default)
    -- <SIP/5706-090a70d0> Playing 'vm-incorrect-mailbox' (language 'en')
 res_config_curl: buffer is [`C¦]
    -- <SIP/5706-090a70d0> Playing 'vm-youhave' (language 'en')
    -- <SIP/5706-090a70d0> Playing 'vm-no' (language 'en')
    -- <SIP/5706-090a70d0> Playing 'vm-messages' (language 'en')
  == Spawn extension (voicemail, vm1571, 3) exited non-zero on 'SIP/5706-090a70d0'
foxtrot*CLI>