'fileprefix' filename templates are having characters elided

[dinkypumpkin]

On 08/11/2014 13:58, dinkypumpkin wrote:
> On 08/11/2014 13:52, dinkypumpkin wrote:
>> On 08/11/2014 12:40, Jeremy Nicoll - ml get_iplayer wrote:
>>> --fatfilename --whitespace --file-prefix "$GRAB-SN130-002369
>>> R=<nameshort> -
>>
>> --whitespace changed with 2.87.  See the 2.87 release notes.
>
> Sorry - seems you already knew that.  Will look again.

Looks like an ancient bug uncovered when I fixed --whitespace.  Should 
be fixed in Git.