Mangle converts "." in path to "/" when path is unmangled

[bfahr]

When a simple command like ls /etc/yum.repos.d is mangled it converts the "/" chars to ".", so in this case insights_commands/ls_.etc.yum.repos.d. When the archive is read and the parser self.file_path is created from an archive, unmangle sets it as /etc/yum/repos/d. This may not create an issue with parsers since they know the path. However if there are parsers that are compensating for this now, like this one #1747.