Add a pointer to "hg -v help" to the bottom of hg help {,cmd} output
This should make it easier to discover global options.
As a bonus, they are no longer displayed by something like a
hg -v help dates
0 files updated, 0 files merged, 1 files removed, 0 files unresolved
changeset: 2:62ec0e86d1e5
tag: tip
parent: 0:567dde5e6e98
user: test
date: Mon Jan 12 13:46:40 1970 +0000
summary: add empty3
changeset: 1:41ab7b321727
user: test
date: Mon Jan 12 13:46:40 1970 +0000
summary: add empty2
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
(branch merge, don't forget to commit)
M empty2
b80de5d138758541c5f05265ad144ab9fa86d1db 644 empty1
b80de5d138758541c5f05265ad144ab9fa86d1db 644 empty2
b80de5d138758541c5f05265ad144ab9fa86d1db 644 empty3