changelog of the current development status, as one or more of these problems
may have been fixed since this was written!
+* --limit-rate using -d or -F does not work. This is because the limit logic
+ is provided by the curl app in its read/write callbacks, and when doing
+ -d/-F the callbacks aren't used!
+
* Doing resumed upload over HTTP does not work with '-C -', because curl
doesn't do a HEAD first to get the initial size. This needs to be done
manually for HTTP PUT resume to work, and then '-C [index]'.