If the channel is hungup during RECORD FILE send a result code of -1 to be uniform with everything else.

(closes issue #11743)
Reported by: davevg
Patches:
      res_agi.diff uploaded by davevg (license 209)


git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.4@98317 65c4cc65-6c06-0410-ace0-fbb531ad65f3

res/res_agi.c

@@ -977,7 +977,7 @@ static int handle_recordfile(struct ast_channel *chan, AGI *agi, int argc, char
 			}
 			f = ast_read(chan);
 			if (!f) {
-				fdprintf(agi->fd, "200 result=%d (hangup) endpos=%ld\n", 0, sample_offset);
+				fdprintf(agi->fd, "200 result=%d (hangup) endpos=%ld\n", -1, sample_offset);
 				ast_closestream(fs);
 				if (sildet)
 					ast_dsp_free(sildet);