tree eca5bc55e28c46247c577a3b0c511da1b6742a5f
parent 73bf3a24d62f74555f26cd245a7e9ceb717d0f69
parent 2e7bb37b64b1ba735c25d36d59a8c10aedc53f70
author Jonathan Nieder <jrnieder@gmail.com> 1340437218 -0500
committer Jonathan Nieder <jrnieder@gmail.com> 1340437218 -0500

Merge branch 'jn/5.0.0' into maint

More fixes from the 5.0 branch:

Fix decoding of LZMA2 streams with blocks with no uncompressed data.
Taking this patch improves compatibility, while not taking this patch
would give people writing encoders a way to notice their output is
buggy.  It's too easy not to check the edge cases when writing an
encoder, so compatibility wins.

Validate encoder arguments better.  The checks that prevent NULL
pointer dereferences are not very important, but checks that avoid
producing malformed compressed output are crucial.

Fix $0 parsing in xzgrep.  xzegrep was treating its argument as a BRE,
which is just asking for subtle trouble in scripts that call it.

Thanks to Lasse Collin for advice.