fix "modifer" -> "modifier" typo everywhere

proxychain/requestmodifiers/bot/bot_test.go

@@ -0,0 +1,36 @@
+package bot
+
+import (
+	"net"
+	"testing"
+)
+
+func TestRandomIPFromSubnet(t *testing.T) {
+	err := GoogleBot.UpdatePool("https://developers.google.com/static/search/apis/ipranges/googlebot.json")
+	if err != nil {
+		t.Error(err)
+	}
+
+	for _, prefix := range GoogleBot.IPPool.Prefixes {
+		subnet := prefix.IPv4
+		if prefix.IPv6 != "" {
+			subnet = prefix.IPv6
+		}
+
+		t.Run(subnet, func(t *testing.T) {
+			_, ipnet, err := net.ParseCIDR(subnet)
+			if err != nil {
+				t.Error(err)
+			}
+
+			ip, err := randomIPFromSubnet(subnet)
+			if err != nil {
+				t.Error(err)
+			}
+
+			if !ipnet.Contains(ip) {
+				t.Fail()
+			}
+		})
+	}
+}