RFR: 8205993: ZGC: Fix typos and incorrect indentations

[Stefan Karlsson]

Looks good.

StefanK

On 2018-06-28 12:11, Per Liden wrote:
> Stefan and I found various typos and incorrect code/comment indentations 
> in ZGC code. Here's a patch to address those. All changes are trivial 
> and not touching any logic.
> 
> Bug: https://bugs.openjdk.java.net/browse/JDK-8205993
> Webrev: http://cr.openjdk.java.net/~pliden/8205993/webrev.0
> 
> /Per