DV Adminshell behavior changed after the upgrade from 6.2.3 to 6.2.8

Issue

• In version 6.2.3 we used to execute groovy scripts using following command /teiid-adminshell/adminshell.sh load test.groovy after the upgrade to 6.2.8 Adminshell it errors and doesn't exit after the script is complete:

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===> static org.teiid.adminshell.AdminShell.*
===> static org.teiid.adminshell.AdminShell.*, static org.teiid.adminshell.GroovySqlExtensions.*
===> static org.teiid.adminshell.AdminShell.*, static org.teiid.adminshell.GroovySqlExtensions.*, org.teiid.adminapi.*
Groovy Shell (2.4.4, JVM: 1.8.0_65)
Type ':help' or ':h' for help.
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groovy:000> :load load
File not found: "load"
groovy:000> :load test.groovy
groovy:000>