+ * configure.ac, NEWS: Version 1.20.90
+ * doc/tar.texi: Document -J, --no-auto-compress, etc.
+ * src/buffer.c (ct_tar): New constant.
+ (magic): Add lzop support. Proposed by Kevin Day
+ <thekevinday@gmail.com>.
+ (check_compressed_archive): Do not use autodetect if the
+ compression program was specified explicitly.
+ Fall back to analyzing archive name, if the autodetection fails.
+ * src/suffix.c: Add .lzo
+ * src/tar.c: New options --lzop and --no-auto-compress.
+ New short option -J (alias for --lzma).
+