hg: amber/amber/hotspot: Fix build failure on linux for uninitialized variable, follow-up

[vicente.romero at oracle.com]

Changeset: c766d0ecd62c
Author:    vromero
Date:      2017-08-23 18:08 -0400
URL:       http://hg.openjdk.java.net/amber/amber/hotspot/rev/c766d0ecd62c

Fix build failure on linux for uninitialized variable, follow-up

! src/share/vm/classfile/verifier.cpp