DOCS-331 minor style changes

Author: Sam Kleinman

source/reference/command/setParameter.txt

@@ -75,7 +75,7 @@ setParameter
 
            .. versionadded:: 2.1
 
-           Specify whether to log full stack traces on assertions or
+           Configures :program:`mongod` log full stack traces on assertions or
            errors. If ``true``, :program:`mongod` will log full stack
            traces on assertions or errors.
 
@@ -93,7 +93,7 @@ setParameter
 
    :option boolean quiet:
 
-           Specify whether to go into a quiet logging mode. If
+           Sets quiet logging mode. If
            ``true``, :program:`mongod` will go into a quiet logging
            mode which will not log the following events/activities: