When appendNumArgs has exclude flag, it should append "(" and num together

[xjplke]

redisearch-go/redisearch/query.go

Line 241 in 7a5af81

return append(args, "(", num)

When appendNumArgs has exclude flag, it should append "(" and num together.

The command line of FT.SEARCH is like this
127.0.0.1:6379> FT.SEARCH myIndex "hello world" LIMIT 0 2 RETURN 1 title FILTER age 29 (31

1. (integer) 1
2. "doc1"
3. 1. "title"
   2. "Hello world"

127.0.0.1:6379> FT.SEARCH myIndex "hello world" LIMIT 0 2 RETURN 1 title FILTER age 29 ( 31
(error) Unknown argument 31 at position 11 for