[Debian-med-packaging] Bug#716616: mincconcat crash detected by Mayhem - Proposing patch

[Martin Steghöfer]

tag 716616 patch
thanks


Hi all! :-)

This crash happens whenever the input file given to mincconcat somehow 
indicates that it's compressed (e.g. by having an extension ".bz2", 
".gz", etc.), but doesn't really contain data in the corresponding 
compression format.

I've added a check for that case in order to give a reasonable error 
message before exiting cleanly instead of just crashing. Please find the 
patch attached.

Cheers,
Martin

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