Fix doc-strings warnings and errors

Fixing doc-string warnings in preparation for
this patch [0] to merge and allow the gate
to show problems in doc-strings.

[0]: https://review.openstack.org/#/c/229951

Closes-Bug: #1565005
Change-Id: I1d1eb214026a963f7ebe5ccf60fa1ae31f54c579

glance/location.py

@@ -163,9 +163,9 @@ class StoreLocations(collections.MutableSequence):
     """
     The proxy for store location property. It takes responsibility for::
 
-    1. Location uri correctness checking when adding a new location.
-    2. Remove the image data from the store when a location is removed
-       from an image.
+        1. Location uri correctness checking when adding a new location.
+        2. Remove the image data from the store when a location is removed
+           from an image.
 
     """
     def __init__(self, image_proxy, value):

glance/tests/functional/v1/test_api.py

@@ -610,18 +610,18 @@ class TestApi(functional.FunctionalTest):
         """
         We test the following sequential series of actions::
 
-        0. POST /images with public image named Image1
-           and no custom properties
-           - Verify 201 returned
-        1. HEAD image
-           - Verify HTTP headers have correct information we just added
-        2. GET image
-           - Verify all information on image we just added is correct
-        3. DELETE image1
-           - Delete the newly added image
-        4. GET image
-           - Verify that 403 HTTPForbidden exception is raised prior to
-             404 HTTPNotFound
+            0. POST /images with public image named Image1
+               and no custom properties
+               - Verify 201 returned
+            1. HEAD image
+               - Verify HTTP headers have correct information we just added
+            2. GET image
+               - Verify all information on image we just added is correct
+            3. DELETE image1
+               - Delete the newly added image
+            4. GET image
+               - Verify that 403 HTTPForbidden exception is raised prior to
+                 404 HTTPNotFound
 
         """
         self.cleanup()

glance/tests/unit/test_glare_plugin_loader.py

@@ -141,7 +141,8 @@ class TestArtifactsLoader(utils.BaseTestCase):
 
         * no plugins can be loaded if load_enabled = False
         * if available_plugins list is given only plugins specified can be
-        be loaded
+          be loaded
+
         """
         self.config(load_enabled=False)
         self.assertRaises(exception.ArtifactLoadError,