dmesg suddenly fails when run as normal user on FC39

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Hi-

 does not happen on FC38, or any prior RedHat/Fedora version since forever.

   dmesg
   dmesg: read kernel buffer failed: Operation not permitted

 Userspace scripts (such as used to read pics from cameras & sdcards) and many progs often use dmesg to detect or identify things like startup probe info, USB devs, partition numbers etc.

 I worked around this by setting the suid bit of `which dmesg`, but it would be rude to force everybody to manually do this as part of post-install cleanup.

 Hopefully an unintended side-effect and not a new "feature" that wasn't thought through completely.  A web-search suggests debian/ubuntu may have been doing this for awhile- but we really don't need to be just like them...    ;)
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