instead entirely rely on the curl_formadd() function. The former one is
subject for removal in a future release.

local file's time

o -G -I works on the same command line and makes HEAD instead of GET
o -G with an already present question mark in the URL makes an ampersand get
  added as a separator instead

like: "curl -d moo=foo -G daniel.haxx.se" currently fails.

and when VERBOSE was enabled, that used the stream. Also, the stream was
closed even if we looped to get more files.
Corrects Dustin Boswell's bug report #441610

start the file name as in 'X:\' where X is any letter. The colon otherwise
normally separate the file name from the password.

curl_global_cleanup().  Update corresponding man pages...

Improve the logic in curl_global_cleanup() and curl_global_init() so that
they are not called twice if the application libraries have been
initialized and make sure to reset the init flags in curl_global_cleanup().

first resume was used on all files instead of being reset between each file.
As found by Björn Stenberg.

but it shows good manner to always cleanup

explicitly, as they're taken care of indirectly by curl/curl.h these
days.

than 509 letters (as newer gcc warns on with -Wall)

screw a few things up.