Fix app_read to return string even if not # terminated (bug #1769)

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@3131 65c4cc65-6c06-0410-ace0-fbb531ad65f3

apps/app_read.c

@@ -86,7 +86,7 @@ static int read_exec(struct ast_channel *chan, void *data)
 	if (!res) {
 		ast_stopstream(chan);
 		res = ast_app_getdata(chan, filename, tmp, maxdigits, 0);
-		if (!res)
+		if (res > -1)
 			pbx_builtin_setvar_helper(chan, varname, tmp);
 		ast_verbose(VERBOSE_PREFIX_3 "User entered '%s'\n", tmp);
 	}