-poke at member variables like $mUploadDescription before the file is saved. Do
-not use this hook to break upload processing. This will return the user to a
-blank form with no error message; use UploadVerification and UploadVerifyFile
-instead.
-&$form: UploadForm object
+poke at member variables like $mUploadDescription before the file is saved.
+Do not use this hook to break upload processing.
+This will return the user to a blank form with no error message;
+use UploadVerifyUpload or UploadVerifyFile instead.
+&$upload: SpecialUpload object