hg: amber/amber: more api changes

[vicente.romero at oracle.com]

Changeset: ea6826b20f20
Author:    vromero
Date:      2019-01-30 19:52 -0500
URL:       http://hg.openjdk.java.net/amber/amber/rev/ea6826b20f20

more api changes

! src/java.base/share/classes/java/io/PrintStream.java
! src/java.base/share/classes/java/io/PrintWriter.java
! src/java.base/share/classes/java/lang/String.java