hg: code-tools/jtreg: Minor updates to docs; remove refs to online help

[jonathan.gibbons at oracle.com]

Changeset: 5ec89f420d40
Author:    jjg
Date:      2017-01-03 15:34 -0800
URL:       http://hg.openjdk.java.net/code-tools/jtreg/rev/5ec89f420d40

Minor updates to docs; remove refs to online help

! src/share/bin/jtreg.sh
! src/share/classes/com/sun/javatest/regtest/exec/RegressionScript.java
! src/share/doc/javatest/regtest/README