[Bug tapsets/15044] New: eradicate cutesy errorish return texts

["fche at redhat dot com" <sourceware-bugzilla at sourceware dot org>]

http://sourceware.org/bugzilla/show_bug.cgi?id=15044

             Bug #: 15044
           Summary: eradicate cutesy errorish return texts
           Product: systemtap
           Version: unspecified
            Status: NEW
          Severity: normal
          Priority: P2
         Component: tapsets
        AssignedTo: systemtap@sourceware.org
        ReportedBy: fche@redhat.com
    Classification: Unclassified


Several tapset functions that return strings signal abnormal inputs or
conditions by returning values like "BAD VALUE", "<unknown>", "", "NULL",
"N/A", "UNKNOWN", "far far in the future...", and my personal favorite, "a
long, long time ago...".

It would be better if, for a future --compatible=VERSION level, these tapset
functions returned errors instead, getting the caller scripts to use the
try/catch construct to handle errors.

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