when fetching object store properties use lower()

sometimes properties within object store concepts are stored with
mixed case depending on the client used to store said properties.

when retrieving properties to 'show' the user, always call lower()
on the property in question when comparing it to the reserved
values of the swift API.

Change-Id: I97ffc715788ca3cd021413124b6945a399465c99
Closes-Bug: 1525805

openstackclient/api/object_store_v1.py

@@ -570,6 +570,6 @@ class APIv1(api.BaseAPI):
         # OSC commands
         properties = {}
         for k, v in six.iteritems(headers):
-            if k.startswith(header_tag):
+            if k.lower().startswith(header_tag):
                 properties[k[len(header_tag):]] = v
         return properties

openstackclient/tests/api/test_object_store_v1.py

@@ -157,6 +157,7 @@ class TestContainer(TestObjectAPIv1):
             'container': 'qaz',
             'object_count': '1',
             'bytes_used': '577',
+            'properties': {'Owner': FAKE_ACCOUNT},
         }
         self.requests_mock.register_uri(
             'HEAD',
@@ -309,6 +310,7 @@ class TestObject(TestObjectAPIv1):
             'etag': 'qaz',
             'x-container-meta-owner': FAKE_ACCOUNT,
             'x-object-meta-wife': 'Wilma',
+            'x-object-meta-Husband': 'fred',
             'x-tra-header': 'yabba-dabba-do',
         }
         resp = {
@@ -319,7 +321,8 @@ class TestObject(TestObjectAPIv1):
             'content-length': '577',
             'last-modified': '20130101',
             'etag': 'qaz',
-            'properties': {'wife': 'Wilma'},
+            'properties': {'wife': 'Wilma',
+                           'Husband': 'fred'},
         }
         self.requests_mock.register_uri(
             'HEAD',

releasenotes/notes/bug_1525805-122e6ce0c3cd4945.yaml

@@ -0,0 +1,5 @@
+---
+fixes:
+  - |
+    Fix case sensitivity when showing object-store properties.
+    [Bug `1525805 <https://bugs.launchpad.net/bugs/1525805>`_]