Add new -y/--bzip2/--bunzip2 flag.  With all the ports that are going to bzip2 as the compression mechanism, this makes life easier.
Add new -y/--bzip2/--bunzip2 flag.  With all the ports that are going to
bzip2 as the compression mechanism, this makes life easier.

Obtained from:	bzip2 website

jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase