juju config shows newlines in settings values when none exist

If I configure a charm value with a long enough string:

    juju config blah value='la di da di da'

then show the config value, there is a newline.

    juju config blah value
    'la di da di
    da'

For example:

stg-cdo-jujucharms@wendigo:~$ juju config jc-squidrev log_format='%>a %ui %un [%tl] "%rm %>ru HTTP/%rv" %>Hs %<st "%{Referer}>h" "%{User-Agent}>h" %Ss:%Sh'
WARNING the configuration setting "log_format" already has the value "%>a %ui %un [%tl] \"%rm %>ru HTTP/%rv\" %>Hs %<st \"%{Referer}>h\" \"%{User-Agent}>h\" %Ss:%Sh"
stg-cdo-jujucharms@wendigo:~$ juju config jc-squidrev log_format --format json
'%>a %ui %un [%tl] "%rm %>ru HTTP/%rv" %>Hs %<st "%{Referer}>h" "%{User-Agent}>h"
  %Ss:%Sh'
stg-cdo-jujucharms@wendigo:~$ juju config jc-squidrev log_format='%>a %ui %un [%tl] "%rm %>ru HTTP/%rv" %>Hs %<st "%{Referer}>h" "%{User-Agent}>h" %Ss:%Sh'
WARNING the configuration setting "log_format" already has the value "%>a %ui %un [%tl] \"%rm %>ru HTTP/%rv\" %>Hs %<st \"%{Referer}>h\" \"%{User-Agent}>h\" %Ss:%Sh"
stg-cdo-jujucharms@wendigo:~$ juju config jc-squidrev log_format
'%>a %ui %un [%tl] "%rm %>ru HTTP/%rv" %>Hs %<st "%{Referer}>h" "%{User-Agent}>h"
  %Ss:%Sh'

This seems a pretty terrible bug to line wrap a value, EVER, when it does not contain a newline. Its confusing and worrying.

I wanted to make sure this is a real bug and not something fixed already as the above was done with 2.0.2.

I needed to use juju-2.2-alpha1 for something else, anyway, so I built that.

This is the result of set and get using juju-2.2-alpha1:

    $ juju config apache2 vhost_template_vars='The quick brown fox jumps over the lazy dog. "The quick brown fox jumps over the lazy dog" "The quick brown fox jumps over the lazy dog" '
    $ juju config apache2 vhost_template_vars
The quick brown fox jumps over the lazy dog. "The quick brown fox jumps over the lazy
  dog" "The quick brown fox jumps over the lazy dog"

A newline was inserted in the middle of the config value.