Fix leftpad query

plugins/leftpad/leftpad.go

@@ -5,10 +5,10 @@ package leftpad
 
 import (
 	"encoding/json"
-	"fmt"
 	"io/ioutil"
 	"log"
 	"net/http"
+	"net/url"
 	"strings"
 
 	"github.com/velour/catbase/bot"
@@ -39,14 +39,16 @@ func (p *LeftpadPlugin) Message(message bot.Message) bool {
 	if len(parts) > 3 && parts[0] == "leftpad" {
 		padchar := parts[1]
 		length := parts[2]
-		text := parts[3:][0]
-		url := fmt.Sprintf("https://api.left-pad.io/?str=%s&len=%s&ch=%s",
-			text,
-			length,
-			padchar,
-		)
+		text := strings.Join(parts[3:], " ")
+		url, _ := url.Parse("https://api.left-pad.io")
+		q := url.Query()
+		q.Set("str", text)
+		q.Set("len", length)
+		q.Set("ch", padchar)
+		url.RawQuery = q.Encode()
+
 		log.Printf("Requesting leftpad url: %s", url)
-		resp, err := http.Get(url)
+		resp, err := http.Get(url.String())
 		if err != nil {
 			p.bot.SendMessage(message.Channel, err.Error())
 			return true