bug: -r should mean "--revision" everywhere

[Daniel Holth]

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Multiple times a day, I am confronted with:

hg status --rev 1 --rev 2

because I want to see which files changed between two revisions.

Of course, usually I type

$ hg status -r 1 -r 2
1: No such file or directory
2: No such file or directory

first.

I have never had any desire to use

hg status -r # show removed files

So, I am affected daily by the UI bug that -r does not mean "revision"
here and everywhere.

Example fixes:

hg status --removed-files

hg diff --summarize -r 1:2


AWOL, astray, away, bag, blitz, cutting, elsewhere, ghost, gone,
hooky, missing, no-show, out, removed, vanished

When I have some time I plan to prepare the
probably-less-controversial "hg update -r target-revision" patch.

- - Daniel Holth
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