hg: jdk/sandbox: Code style improvements

[adam.petcher at oracle.com]

Changeset: 55bac0266042
Author:    apetcher
Date:      2018-08-29 11:18 -0400
URL:       http://hg.openjdk.java.net/jdk/sandbox/rev/55bac0266042

Code style improvements

! src/java.base/share/classes/sun/security/ssl/KAKeyDerivation.java
! src/java.base/share/classes/sun/security/ssl/SSLKeyAgreementCredentials.java
! src/java.base/share/classes/sun/security/ssl/SupportedGroupsExtension.java
! src/java.base/share/classes/sun/security/ssl/XDHKeyExchange.java
! src/java.base/share/classes/sun/security/util/ECUtil.java