only set cookiejar if selected

badness in the string and we help our user by returning an error.

to support numbers larger than 9

string reaches > 512 bytes...

options, more frequently used, in a future release

taken care of by the exit-free anyway but caused test case 75 and 76 to
report memory leaks).

Also re-indented a small section.

the distribution archive, as it isn't sure zlib is present everywhere. Those
who care much for compressed help should regenerate the file.

possibly crlf newlines.

be done on the output

more output on --version/-V
mention --manual on the help output text

of all supported protocols.

the 'hugehelp' text if libz and gzip are available at build time.