hg: amber/amber: Automatic merge with default

[maurizio.cimadamore at oracle.com]

Changeset: 458598b9668b
Author:    mcimadamore
Date:      2017-09-26 15:24 +0200
URL:       http://hg.openjdk.java.net/amber/amber/rev/458598b9668b

Automatic merge with default

! make/autoconf/flags.m4
! make/autoconf/generated-configure.sh
! make/autoconf/spec.gmk.in
- src/jdk.jshell/share/classes/jdk/jshell/VarTypePrinter.java