textproc/py-jinja2 can't fetch from HTTPS

["J. Lewis Muir" <jlmuir%imca-cat.org@localhost>]

Hello.

I tried to build and install textproc/py-jinja2 from the current branch
on Darwin, but it failed to download the distfile because the
MASTER_SITES URL redirects from HTTP to HTTPS, and none of the other
mirrors had the file available, and the ftp program doesn't support
HTTPS.

Here's the failure output:

===
=> Fetching Jinja2-2.7.1.tar.gz
=> Total size: 377813 bytes
Trying 199.27.75.185...
Requesting
http://pypi.python.org/packages/source/J/Jinja2/Jinja2-2.7.1.tar.gz
Redirected to
https://pypi.python.org/packages/source/J/Jinja2/Jinja2-2.7.1.tar.gz
ftp: Can't lookup `https': nodename nor servname provided, or not known
ftp: Can't connect or login to host `https'
fetch: Unable to fetch expected file Jinja2-2.7.1.tar.gz

[snip: tries mirrors without success]

fetch: Unable to fetch expected file Jinja2-2.7.1.tar.gz
*** Error code 1

Stop.
bmake: stopped in /pkgsrc/textproc/py-jinja2
===

I overcame this by adding "FETCH_USING= curl" to mk.conf.  However,
maybe the Makefile should have the MASTER_SITES URL switched to the
HTTPS URL and "FETCH_USING= curl" added to it?

Thanks,

Lewis