libct/cg/sd: use systemd v240+ new MAJOR:* syntax #3843
Merged
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Since systemd v240 (systemd commit 8e8b5d2e6d91180a), one can use
/dev/{char,block}-MAJOR
syntax to specify that allMAJOR:*
devices of the type are allowed.
Use it, if available, since it's more straightforward, plus
we can skip somewhat expensive parsing of /proc/devices
(which also reminds me we need to merge #3357).