#3563 replace {expand} with {*} (TIP #293)

[Jeffrey Hobbs]

The attached patch replaces the {expand} syntax with
{*} in toto (no use or references of {expand}).

[Jeffrey Hobbs]

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This is TIP #293 btw.

[Jeffrey Hobbs]

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Updated patch that has ALLOW_EXPAND to allow the old
{expand} syntax but not the empty {} syntax if defined to 1
(-DALLOW_EXPAND=1).

[Jeffrey Hobbs]

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update of last patch - ALLOW_EXPAND on by default

[Jeffrey Hobbs]

[Jeffrey Hobbs]

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committed for 8.5a6 with {expand} allowed by default for the
transition period.