The 'r1{caret}!' notation includes commit 'r1' but excludes all of its parents.
By itself, this notation denotes the single commit 'r1'.
-The '<rev>{caret}-{<n>}' notation includes '<rev>' but excludes the <n>th
+The '<rev>{caret}-<n>' notation includes '<rev>' but excludes the <n>th
parent (i.e. a shorthand for '<rev>{caret}<n>..<rev>'), with '<n>' = 1 if
not given. This is typically useful for merge commits where you
can just pass '<commit>{caret}-' to get all the commits in the branch
as giving commit '<rev>' and then all its parents prefixed with
'{caret}' to exclude them (and their ancestors).
-'<rev>{caret}-{<n>}', e.g. 'HEAD{caret}-, HEAD{caret}-2'::
+'<rev>{caret}-<n>', e.g. 'HEAD{caret}-, HEAD{caret}-2'::
Equivalent to '<rev>{caret}<n>..<rev>', with '<n>' = 1 if not
given.