fix #143 FILTER should not have white space from the EXCLUDE ( (#145)

Author: gkorland

redisearch/query.go

@@ -1,6 +1,7 @@
 package redisearch
 
 import (
+	"fmt"
 	"math"
 
 	"github.com/gomodule/redigo/redis"
@@ -238,7 +239,7 @@ func appendNumArgs(num float64, exclude bool, args redis.Args) redis.Args {
 	}
 
 	if exclude {
-		return append(args, "(", num)
+		return append(args, fmt.Sprint("(", num))
 	}
 	return append(args, num)
 }

redisearch/query_test.go

@@ -146,7 +146,7 @@ func Test_appendNumArgs(t *testing.T) {
 		want redis.Args
 	}{
 		{"1 arg", args{1.0, false, redis.Args{}}, redis.Args{1.0}},
-		{"1 excluded arg", args{1.0, true, redis.Args{}}, redis.Args{"(", 1.0}},
+		{"2.54 excluded arg", args{2.54, true, redis.Args{}}, redis.Args{"(2.54"}},
 		{"+inf", args{math.Inf(1), false, redis.Args{}}, redis.Args{"+inf"}},
 		{"+inf", args{math.Inf(-1), false, redis.Args{}}, redis.Args{"-inf"}},
 	}