Issue #16384: avoid lspci warnings on OpenVZ containers

I did not dare to shuffle things around in the huge _virtual() method.
Instead, logging gets postponed, and upon detection of 'virtual:openvzve',
failures for lspci and dmidecode get discarded
Merge branch 'develop' of https://github.com/gracinet/salt into gracinet-develop
Merge branch 'gracinet-develop' into develop
Replace backslash-quote with raw string formatting