fix: failure of make engine test when a make engine alias contains a modifier. There can be more than one variant per alias via "." e.g. make.extrastuff where make and extrastuff are variants.
<?xml version="1.0"?>
<SystemDefinition name="MCL" schema="1.4.0">
<systemModel>
<layer name="RaptorEnvelope">
<module name="Tests">
<component name="envelope">
<unit unitID="001" name="featreg" bldFile="common/generic/syslibs/featreg/group"/>
<unit unitID="001" name="store" bldFile="common/generic/syslibs/store/group"/>
</component>
</module>
</layer>
</systemModel>
<build>
</build>
</SystemDefinition>