Merge branch 'dm/maint-docco'

* dm/maint-docco: Documentation: Remove spurious uses of "you" in git-bisect.txt. Documentation: minor grammatical fix in git-check-ref-format.txt Documentation: minor grammatical fixes in git-check-attr.txt Documentation: minor grammatical fixes in git-cat-file.txt Documentation: minor grammatical fixes and rewording in git-bundle.txt Documentation: remove some uses of the passive voice in git-bisect.txt