Fix typos in help messages

This change fixes typos in conf parameter help messages
and in error log message.

Change-Id: Iedc268072d77771b208603e663b0ce9b94215eb8

nova/compute/resource_tracker.py

@@ -1856,7 +1856,7 @@ class ResourceTracker(object):
                         raise ValueError(_(
                             "Provider config '%(source_file_name)s' attempts "
                             "to define a trait that is owned by the "
-                            "virt driver or specified via the placment api. "
+                            "virt driver or specified via the placement api. "
                             "Invalid traits '%(invalid)s' must be removed "
                             "from '%(source_file_name)s'.") % {
                                 'source_file_name': source_file_name,

nova/conf/compute.py

@@ -200,7 +200,7 @@ The template will be rendered using Jinja2 template engine, and receive a
 top-level key called ``interfaces``. This key will contain a list of
 dictionaries, one for each interface.
 
-Refer to the cloudinit documentaion for more information:
+Refer to the cloudinit documentation for more information:
 
   https://cloudinit.readthedocs.io/en/latest/topics/datasources.html
 

nova/conf/hyperv.py

@@ -320,7 +320,7 @@ configured to claim such devices.
     cfg.ListOpt('iscsi_initiator_list',
                 default=[],
                 help="""
-List of iSCSI initiators that will be used for estabilishing iSCSI sessions.
+List of iSCSI initiators that will be used for establishing iSCSI sessions.
 
 If none are specified, the Microsoft iSCSI initiator service will choose the
 initiator.

nova/conf/libvirt.py

@@ -453,7 +453,7 @@ support built into QEMU.
 
 Prerequisite: TLS environment is configured correctly on all relevant
 Compute nodes.  This means, Certificate Authority (CA), server, client
-certificates, their corresponding keys, and their file permisssions are
+certificates, their corresponding keys, and their file permissions are
 in place, and are validated.
 
 Notes:
@@ -705,7 +705,7 @@ the source of entropy on the host.  Since libvirt 1.3.4, any path (that
 returns random numbers when read) is accepted.  The recommended source
 of entropy is ``/dev/urandom`` -- it is non-blocking, therefore
 relatively fast; and avoids the limitations of ``/dev/random``, which is
-a legacy interface.  For more details (and comparision between different
+a legacy interface.  For more details (and comparison between different
 RNG sources), refer to the "Usage" section in the Linux kernel API
 documentation for ``[u]random``:
 http://man7.org/linux/man-pages/man4/urandom.4.html and

nova/conf/neutron.py

@@ -46,7 +46,7 @@ Default name for the floating IP pool.
 
 Specifies the name of floating IP pool used for allocating floating IPs. This
 option is only used if Neutron does not specify the floating IP pool name in
-port binding reponses.
+port binding responses.
 """),
     cfg.IntOpt('extension_sync_interval',
          default=600,

nova/conf/quota.py

@@ -147,7 +147,7 @@ Possible values:
         deprecated_group='DEFAULT',
         deprecated_name='quota_server_groups',
         help="""
-The maxiumum number of server groups per project.
+The maximum number of server groups per project.
 
 Server groups are used to control the affinity and anti-affinity scheduling
 policy for a group of servers or instances. Reducing the quota will not affect

nova/conf/scheduler.py

@@ -780,7 +780,7 @@ follows:
 
 Possible values:
 
-* An integer or float value, where the value corresponds to the multipler
+* An integer or float value, where the value corresponds to the multiplier
   ratio for this weigher.
 
 Related options:
@@ -857,7 +857,7 @@ of any actual metric value:
 
 Possible values:
 
-* An integer or float value, where the value corresponds to the multipler
+* An integer or float value, where the value corresponds to the multiplier
   ratio for this weigher.
 
 Related options:

nova/tests/unit/compute/test_resource_tracker.py

@@ -4069,7 +4069,7 @@ class ProviderConfigTestCases(BaseTestCase):
 
         expected = ("Provider config 'test_provider_config.yaml' attempts to "
                     "define a trait that is owned by the virt driver or "
-                    "specified via the placment api. Invalid traits '" +
+                    "specified via the placement api. Invalid traits '" +
                     ex_trait + "' must be removed from "
                     "'test_provider_config.yaml'.")