update to 1.8.6.31 (#298)

* x-cos-tagging support

* update to 1.8.6.31

---------

Co-authored-by: lewzylu(卢众意) <lewzylu@tencent.com>

Author: lewzylu

coscmd/cos_comm.py

@@ -68,10 +68,8 @@ def mapped(headers):
     for i in headers:
         if i in maplist:
             _headers[maplist[i]] = headers[i]
-        elif i.startswith('x-cos-meta-'):
-            _meta[i] = headers[i]
         else:
-            _headers[headers[i]] = headers[i]
+            _meta[i] = headers[i]
     if len(_meta) > 0:
         _headers['Metadata'] = _meta
     return _headers

coscmd/cos_global.py

@@ -1 +1 @@
-Version = "1.8.6.30"
+Version = "1.8.6.31"