Bug: http://curl.haxx.se/bug/view.cgi?id=1252
Reported-by: Jean-Noël Rouvignac
.IP "--xattr"
When saving output to a file, this option tells curl to store certain file
-metadata in extened file attributes. Currently, the URL is stored in the
+metadata in extended file attributes. Currently, the URL is stored in the
xdg.origin.url attribute and, for HTTP, the content type is stored in
the mime_type attribute. If the file system does not support extended
attributes, a warning is issued.