Change destroy cmd to use || for lexing, shortcut
Change destroy cmd to use || for lexing, shortcut

The terraform destroy command invocation currently has the form of `cmd
-flag; cmd -flag`. shlex parses the semicolon as part of the first flag,
which it is not.  I changed it so it has the form `cmd || cmd`. This
should fix the bug at hand. Additionally, the short curcuit feature of
|| in bash cuts down on redundant destroy invocations

KaGeN101/mantl,datascienceinc/mantl,CiscoCloud/mantl,CiscoCloud/microservices-infrastructure,CiscoCloud/microservices-infrastructure,phnmnl/mantl,bitium/mantl,bitium/mantl,KaGeN101/mantl,sehqlr/mantl,phnmnl/mantl,mantl/mantl,CiscoCloud/mantl,mantl/mantl,datascienceinc/mantl,sehqlr/mantl