Adjust booleans in cloud modules. (#5155) (#5176)

(cherry picked from commit 3a08903e1c)

Co-authored-by: Felix Fontein <felix@fontein.de>

plugins/modules/cloud/rackspace/rax_cdb.py

@@ -21,7 +21,7 @@ options:
     type: str
     description:
       - Name of the databases server instance
-    required: yes
+    required: true
   flavor:
     type: int
     description:
@@ -55,7 +55,7 @@ options:
     description:
       - wait for the instance to be in state 'running' before returning
     type: bool
-    default: 'no'
+    default: false
   wait_timeout:
     type: int
     description:
@@ -82,7 +82,7 @@ EXAMPLES = '''
         volume: 2
         cdb_type: MySQL
         cdb_version: 5.6
-        wait: yes
+        wait: true
         state: present
       register: rax_db_server
 '''