compat with rubygems.
svn path=/main/trunk/; revision=11520
variable that have no protocol and simply start with a '/' path separator may
be used to specify mounted filesystem mirrors.
.TP
-\fBhttp_proxy ftp_proxy\fR = \fI[host:port]\fR
+\fBhttp_proxy ftp_proxy\fR = \fI[protocol://host:port]\fR
These vars are used if the sources must be downloaded from the
internet by \fBwget\fR(1). They are only required if you use a
proxy server for internet access.