`magit-git-section': fix docstring

The part about the CMD arg is no longer relevant since the docstring
was moved over from `magit-insert-section' (commit 6f69a607).

Signed-off-by: Pieter Praet <pieter@praet.org>
`magit-wazzup-mode': fix docstring

Being listed in `magit-wazzup-mode' doesn't necessarily mean that a
commit is unique to a branch.  The only thing we can be sure of is that
it's on a branch which isn't merged into HEAD yet.

Signed-off-by: Pieter Praet <pieter@praet.org>
`magit-wazzup-buffer-name': fix docstring

Signed-off-by: Pieter Praet <pieter@praet.org>
`magit-branch-manager-mode': fix docstring

Its docstring was copy-paste from `magit-diff-mode',
but wasn't adjusted according to its new location.

Signed-off-by: Pieter Praet <pieter@praet.org>
`magit-branches-buffer-name': fix docstring

s/branch /buffer /

Signed-off-by: Pieter Praet <pieter@praet.org>
`magit-commit-mode': fix docstring

s/locking/looking/

Signed-off-by: Pieter Praet <pieter@praet.org>
`magit-*-mode': separate clauses in docstring

Because a single punctuation char can do wonders for readability.

Signed-off-by: Pieter Praet <pieter@praet.org>
Merge branch 'docstrings'