RFR (XS) 8204295: [BACKOUT] JVMFlag::printError missing ATTRIBUTE_PRINTF

[Kim Barrett]

> On Jun 4, 2018, at 2:35 PM, Gerard Ziemski <gerard.ziemski at oracle.com> wrote:
> 
> Hi all,
> 
> Please review this tiny back out fix, to the original tiny fix, which triggered warnings in other files (I did not catch it locally because I used a script that turned warnings off to build).
> 
> https://bugs.openjdk.java.net/browse/JDK-8204295
> http://cr.openjdk.java.net/~gziemski/8204295_rev1
> 
> 
> cheers

Looks good.