in Moodle 2.1.x, 2.2.x and 2.3 Beta.

When inside the complete report for a student, under the quiz section you will see something like this

Quiz: New Quiz - The Attempt - Whether correct - Marks - Specific feedback - General feedback
Grade: 5.00 / 10.00
Attempt {$a} 1: 1.00/2.00 - Monday, 20 February 2012, 02:38 PM

I have highlighted the error. Inside the file /mod/quiz/lang/en/quiz.php contains this line:

$string['attempt'] = 'Attempt {$a}';

which indicates the 'string contains a placeholder' Which is fine but I cannot work out whether it was deliberate or a legacy issue.
This is easily edited with Language Customisation so that 'mod_quiz' 'attempt' instead of being 'Attempt {$a}' is now 'Attempt'

Am I missing anything else as I cannot see where else this is impacted?