hg: code-tools/jtreg: give error for unset smart action args

[jonathan.gibbons at oracle.com]

Changeset: 2c7458c99b6e
Author:    iignatyev
Date:      2019-11-27 09:04 -0800
URL:       https://hg.openjdk.java.net/code-tools/jtreg/rev/2c7458c99b6e

give error for unset smart action args

! src/share/classes/com/sun/javatest/regtest/exec/RegressionScript.java