Merge pull request #79239 from andersk/mlocate-warning

locate: Clarify mlocate warning message

nixos/modules/misc/locate.nix

···
       { LOCATE_PATH = cfg.output;
       };
 
-    warnings = optional (isMLocate && cfg.localuser != null) "mlocate does not support searching as user other than root"
+    warnings = optional (isMLocate && cfg.localuser != null) "mlocate does not support the services.locate.localuser option; updatedb will run as root. (Silence with services.locate.localuser = null.)"
             ++ optional (isFindutils && cfg.pruneNames != []) "findutils locate does not support pruning by directory component"
             ++ optional (isFindutils && cfg.pruneBindMounts) "findutils locate does not support skipping bind mounts";