[MERGE] fit very long revision summary to terminal_width-1 for show_pending_merges(short=True).

[Alexander Belchenko]

John Arbash Meinel пишет:
> Alexander Belchenko wrote:
>> Correct version of my previous patch for show pending merges correctly 
>> in output of status --short.
>>
> 
> Can you explain why this is only needed if using --short? It seems like 
> we should always do it this way.

Because pending merges in long version printed with 3 spaces indent, but
in short version indent is 4 chars (leading 'P' and 3 spaces).