Comment (by Roland Haas):

The vname → uname change for sync seems fine. There is an unrelated change in the patch:

-options = (?i:options?) : {vname}( , {vname}|{-spacing}{vname})*
+optname = [a-zA-Z0-9-]+
+options = (?i:options?) : {optname}( , {optname}|{-spacing}{optname})*

which needs explanation I think.

Is there maybe already a gname that is identical to uname ? For other places where groups are allowed?

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Ticket URL: https://bitbucket.org/einsteintoolkit/tickets/issues/2192/scheduleccl-sync-allows-for-timelevels