Add <module>.*all aliases to .all* and update helpHEADmaster

And just echo a rename info for the 'all' target and exit with
an error, so people will actually adapt. 'all' had been modified
to run 'allbuild' in the original commit anyway. And since there
is no toplevel 'all' target, this just seems consequent.
And .PHONY the new targets.

Also advertise "make help" a bit more at the end of configure.

Follow-up on commit d6496fce2e51a3e44753e6b5c462824f182b48d5
("split gbuild's <module>.all to <module>.allbuild or .allcheck").

Change-Id: Ia74020375f0a024dc67ea37ae4b18655af9df084
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/128490
Tested-by: Jenkins
Reviewed-by: Jan-Marek Glogowski <glogow@fbihome.de>

0 files changed, 0 insertions, 0 deletions