Update cookiejar.py

Author: LamentXU123

Lib/http/cookiejar.py

@@ -537,7 +537,7 @@ def parse_ns_headers(ns_headers):
 
 def is_ip_like_hostname(text):
     """Return True if text is a valid hostname in the form of IP address.
-\
+
     If text is a valid IPv4 address, retrun True;
 
     If text is a valid IPv6 address wrapped in [], return True;