recurls: Allow to provide authentication certificate

src/recurls/recurls.py

@@ -55,6 +55,7 @@ class Recurls(object):
     auth=None,
     timeout=None,
     source_ip=None,
+    certificate=None,
     data=None
   ):
     try:
@@ -78,6 +79,8 @@ class Recurls(object):
       ]
       if data is not None:
         command_list.extend(['--data-binary', data])
+      if certificate is not None:
+        command_list.extend(['--cert', certificate])
       if allow_redirects:
         command_list.append('--location')
         command_list.extend(['--max-redirs', '100'])