FTS1_ASTWN - Displays any AST warning messages stored in the supplied FitsChan

Description:

The AST library can store warning messages in a FItsChan in the form of header cards with the keyword "ASTWARN". This routine searches for such cards and displays them nicely if any are found.

Invocation:

CALL FTS1_ASTWN( FC, INDF, STATUS )

Arguments:

FC = INTEGER (Given)

The AST pointer to the FitsChan.

INDF = INTEGER (Given)

The NDF identifier for the NDF being created.

STATUS = INTEGER (Given and Returned)

The global status.