Fix spelling mistakes (comments only) (#25564)

Original Author : klemens <ka7@github.com>

Taking over previous PR as per
https://github.com/ansible/ansible/pull/23644#issuecomment-307334525

Signed-off-by: Abhijeet Kasurde <akasurde@redhat.com>

lib/ansible/modules/cloud/amazon/ec2_group.py

@@ -45,7 +45,7 @@ options:
     description:
       - List of firewall inbound rules to enforce in this group (see example). If none are supplied,
         no inbound rules will be enabled. Rules list may include its own name in `group_name`.
-        This allows idempotent loopback additions (e.g. allow group to acccess itself).
+        This allows idempotent loopback additions (e.g. allow group to access itself).
         Rule sources list support was added in version 2.4. This allows to define multiple sources per
         source type as well as multiple source types per rule. Prior to 2.4 an individual source is allowed.
     required: false

lib/ansible/modules/cloud/amazon/ec2_vpc_route_table.py

@@ -30,7 +30,7 @@ options:
   lookup:
     description:
       - "Look up route table by either tags or by route table ID. Non-unique tag lookup will fail.
-        If no tags are specifed then no lookup for an existing route table is performed and a new
+        If no tags are specified then no lookup for an existing route table is performed and a new
         route table will be created. To change tags of a route table or delete a route table,
         you must look up by id."
     required: false

lib/ansible/modules/cloud/amazon/s3.py

@@ -253,7 +253,7 @@ EXAMPLES = '''
     bucket: mybucket
     mode: delete
 
-- name: GET an object but dont download if the file checksums match. New in 2.0
+- name: GET an object but don't download if the file checksums match. New in 2.0
   s3:
     bucket: mybucket
     object: /my/desired/key.txt

lib/ansible/modules/cloud/amazon/sns.py

@@ -207,7 +207,7 @@ def main():
                              "the 'json' message_structure.")
 
     # .publish() takes full ARN topic id, but I'm lazy and type shortnames
-    # so do a lookup (topics cannot contain ':', so thats the decider)
+    # so do a lookup (topics cannot contain ':', so that's the decider)
     if ':' in topic:
         arn_topic = topic
     else: