hg: kulla/dev/langtools: When editing a multi-line snippet from the history, narrow the history search to the snippet only, as suggested by Brian.

[jan.lahoda at oracle.com]

Changeset: 04ba0e276500
Author:    jlahoda
Date:      2015-04-11 19:23 +0200
URL:       http://hg.openjdk.java.net/kulla/dev/langtools/rev/04ba0e276500

When editing a multi-line snippet from the history, narrow the history search to the snippet only, as suggested by Brian.

! repl/src/tool/Repl.java