changelog of the current development status, as one or more of these problems
may have been fixed since this was written!
+81. When using -J (with -O), automaticly resumed downloading together with "-C
+ -" fails. Without -J the same command line works! This happens because the
+ resume logic is worked out before the target file name (and thus its
+ pre-transfer size) has been figured out!
+ http://curl.haxx.se/bug/view.cgi?id=1169
+
80. Curl doesn't recognize certificates in DER format in keychain, but it
works with PEM.
http://curl.haxx.se/bug/view.cgi?id=3439999