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2016-05-12 Antonio Diaz Diaz <antonio@gnu.org>
* Version 1.18 released.
* main.cc: Added new option '-a, --trailing-error'.
* merge.cc (open_input_files): Use CRC to test identical files.
* repair.cc (repair_file): Detect gross damage before repairing.
* repair.cc: Repair a damaged dictionary size in the header.
* repair.cc: Try bytes at offsets 7 to 11 first.
* Decompression time has been reduced by 2%.
* main.cc (decompress): Print up to 6 bytes of trailing data
when '-tvvvv' is specified.
* decoder.cc (verify_trailer): Removed test of final code.
* main.cc (main): Delete '--output' file if infd is a terminal.
* main.cc (main): Don't use stdin more than once.
* Use 'close_and_set_permissions' and 'set_signals' in all modes.
* range_dec.cc (list_file): Show dictionary size and size of
trailing data (if any) with '-lv'.
* Added new option '-A, --alone-to-lz'.
* Added new option '-W, --debug-decompress'.
* Added new option '-X, --show-packets'.
* Changed short name of option '--debug-delay' to '-Y'.
* Changed short name of option '--debug-repair' to '-Z'.
* unzcrash.cc: Added new option '-B, --block'.
* unzcrash.cc: Added new option '-d, --delta'.
* unzcrash.cc: Added new option '-t, --truncate'.
* unzcrash.cc: Added new option '-z, --zcmp'.
* unzcrash.cc: Read files as large as RAM allows.
* unzcrash.cc: Compare output using zcmp if decompressor returns 0.
* unzcrash.cc: Accept negative position and size.
* lzip.texi: Added chapter 'Trailing data'.
* configure: Avoid warning on some shells when testing for g++.
* Makefile.in: Detect the existence of install-info.
* testsuite/check.sh: Don't check error messages.
* testsuite/check.sh: A POSIX shell is required to run the tests.
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