This file lists the possible classes of Problem Reports. Each line
consists of a class name, followed by a colon and an optional class type
name (the class type name is not used for anything in the current
implementation of GNATS, so it may be left blank. The
class-type-name fields may only contain alphanumerics,
`-', `_', and `.', but no other
Then comes another colon, followed by an optional one-line
description of the class. GNATS itself does not use the class
description, but external tools such as Gnatsweb and TkGnats may use it.
Therefore, a line in this file should at least contain the following:
Lines beginning with `#' will be ignored, and the first listed
class is the default class for an incoming Problem Report.