SKARA-1983 added handling for the case where include.path includes more than one value. But if more than one of those values are "skara.gitconfig" paths, this will still confuse the bootstrap mechanism. Such a case can present if there is, for example, a system-level skara installation in /etc/gitconfig but the user also installs skara on their own. To handle such a case, let's select the last value.