bin/51883: ftp command documentation hides https_proxy environment variable

[wgstuken%grimme-reitenspezial.de@localhost]

>Number:         51883
>Category:       bin
>Synopsis:       ftp command documentation hides https_proxy environment variable
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    bin-bug-people
>State:          open
>Class:          doc-bug
>Submitter-Id:   net
>Arrival-Date:   Sun Jan 15 12:55:00 +0000 2017
>Originator:     Wolfgang Stukenbrock
>Release:        7.0.1
>Organization:
>Environment:
not relevant
>Description:
The description of the https_proxy variable is missing in the manual page.
Please add it.

By the way: an example setup for the ^xx°_proxy variables would be a nice thing.
>How-To-Repeat:
call 'man ftp' - you will se no reference to https_proxy environment variable.


>Fix:
document missing variable in manual