Fix some word spellings

Change-Id: I9cce8384341e2efb68cfab0aa73fc88ae4561189

doc/source/configure_tokenless_x509.rst

@@ -87,7 +87,7 @@ The following options can be defined in `keystone.conf`:
 * ``issuer_attribute`` - The issuer attribute that is served as an IdP ID for
   the X.509 tokenless authorization along with the protocol to look up its
   corresponding mapping. It is the environment variable in the WSGI
-  enviornment that references to the Issuer of the client certificate. It
+  environment that references to the Issuer of the client certificate. It
   defaults to ``SSL_CLIENT_I_DN``.
 
 This is a sample configuration for two `trusted_issuer` and a `protocol` set
@@ -127,7 +127,7 @@ like in a certificate.
     C=US
 
 The issuer DN should be constructed as a string that contains no spaces
-and have the right order seperated by commas like the example below.
+and have the right order separated by commas like the example below.
 Please be aware that ``emailAddress`` and ``ST`` should be used instead
 of ``E`` and ``S`` that are shown in the above example. The following is
 the sample Python code used to create the IdP ID.

keystone/cmd/cli.py

@@ -189,7 +189,7 @@ class BootStrap(BaseApp):
             self.role_id = role[0]['id']
 
         # NOTE(morganfainberg): Handle the case that the role assignment has
-        # already occured.
+        # already occurred.
         try:
             self.assignment_manager.add_role_to_user_and_project(
                 user_id=user['id'],

keystone/tests/unit/mapping_fixtures.py

@@ -784,7 +784,7 @@ MAPPING_GROUPS_BLACKLIST = {
     ]
 }
 
-# Excercise all possibilities of user identitfication. Values are hardcoded on
+# Exercise all possibilities of user identification. Values are hardcoded on
 # purpose.
 MAPPING_USER_IDS = {
     "rules": [

keystone/tests/unit/test_backend.py

@@ -6891,7 +6891,7 @@ class ImpliedRoleTests(AssignmentTestHelperMixin):
                 {'params': {'user': 0},
                  'results': [{'user': 0, 'role': 0, 'domain': 0,
                               'inherited_to_projects': 'projects'}]},
-                # List in effective mode - we should only see the inital and
+                # List in effective mode - we should only see the initial and
                 # implied role on the project (since inherited roles are not
                 # active on their anchor point).
                 {'params': {'user': 0, 'effective': True},

tox.ini

@@ -99,7 +99,7 @@ commands =
   bandit -c bandit.yaml -r keystone -n5 -p gate
 
 [testenv:pep8]
-# Previous name of linters target, kept for compatability. The infra jobs
+# Previous name of linters target, kept for compatibility. The infra jobs
 # will run the linters job.
 deps = {[testenv:linters]deps}
 whitelist_externals =