RFR(XXS): 8223397: gc+promotion log lines are missing the GC id

[Thomas Schatzl]

Hi,

On Mon, 2019-05-06 at 13:27 -0400, Tony Printezis wrote:
> Trivial one-line change:
> 
> http://cr.openjdk.java.net/~tonyp/8223397/webrev.0/
> 
> Was there a reason why gc+promotion was not added to LOG_PREFIX_LIST
> in the first place?
> 
> 
> Before:
> 
[...]
> After:
> 
[...]
> 

  looks good to me.

Thomas