Merge branch 'ew/svn-fixes' into maint

Meant eventually for 'maint'. * ew/svn-fixes: git-svn: document useLogAuthor and addAuthorFrom config keys git-svn: allow "0" in SVN path components

Junio C Hamano committed Jan 31, 2017 at 13:32 UTC 844f7e61c9c2fcacc05eaa826a4695f20050dce5

No changes.