arguments in a config file without a required parameter!

now errors out if built with off_t > 32 bits but without strtoll()

it named "--ftp-port" as the additional dash between the words is used in
several other options and this makes it more consistant.

(at least).

in a slightly better way for more platforms. The $HOME is only used for
.curlrc atm, but the possible upcoming change of .netrc treatment may also
need the home dir.

a numeric argument can better bail out if given a weird parameter. This
catches situations such as "-y -Y 2000" or "-O -C [URL]" etc.

of explanations.

my upcoming automated test gets crazy if not

--capath. Using -k together with one of those just means that the result
of the CA cert check is ignored (but displayed if -v is used).

command line.

Re-arranged some option code.

sure you have one URL for each -T. A -T file name can also be "globbed"
like -T "{file1,file2}".

Test case 149 verifies this functionality.

only set cookiejar if selected

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

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.