Document Update Instructions have been revised

[Frank H. Ellenberger]

David,

Am 07.02.2017 um 17:02 schrieb David T.:
> 
>> On Feb 7, 2017, at 7:14 PM, Frank H. Ellenberger <frank.h.ellenberger at gmail.com> wrote:
>>
>> Hi David,
>>
>> Am 07.02.2017 um 11:29 schrieb David T.:
>>> Chris, No. I haven't tried John's suggestion. My current mac is five
>>> years old, and I had already downloaded the full xcode upgrade when
>>> John made the suggestion. I'll note that the wiki still instructs mac
>>> users to install the full xcode suite. If it's no longer true, then
>>> the wiki needs correction. David
>>
>> Go for it. You are the Mac experts. ;-)
>>
>> ~Frank
> 
> Frank,
> 
> I’m no expert, and I haven’t tested John’s solution, so I don’t know whether it’s true.
> 
> David

But you are more experienced than me with Apple ][ decades ago. ;-)

I think in such a case it is sufficient to add a reliable source like
http://lists.gnucash.org/pipermail/gnucash-devel/2017-January/040249.html

Frank