phpdoc error in project_issue_metadata_changes()

The phpdoc parameters includes a $view parameter that's not actually present in the function signature. We need to figure out what happened here. Probably $view is no longer a parameter, since I don't see the variable used in the actual function.

/**
* Calculate the differences in project_issue comment metadata
* between the original issue and a comment or between two
* comments.
*
* @param $view
* A string representing the metadata view being generated. For the comment
* metadata table, this will be 'diff'.
* @param $node
* The issue node.
* @param $old_data
* Object containing old metadata.
* @param $new_data
* Object containing new metadata.
* @param $field_labels
* An associative array of field_name=>display_name pairs.
* In most cases, this will be the array returned by project_issue_change_summary().
*
* @return
* An associative array containing information about changes between
* the two objects.
....

function project_issue_metadata_changes($node, $old_data, $new_data, $field_labels = array()) {}