hg: kulla/dev/langtools: Per JShellTool review, streamify errorsOnly(). Thanks Paul.

[robert.field at oracle.com]

Changeset: 65e671a437d0
Author:    rfield
Date:      2015-09-08 11:46 -0700
URL:       http://hg.openjdk.java.net/kulla/dev/langtools/rev/65e671a437d0

Per JShellTool review, streamify errorsOnly().  Thanks Paul.

! src/jdk.jshell/share/classes/jdk/internal/jshell/tool/JShellTool.java