Обсуждение: Documentation suggestion

Hi,

I'd like to suggest a little enhancement to the documentation chapter about file-system backup
http://www.postgresql.org/docs/current/static/backup-file.html

As I regularly see people copying files between different operating systems, I think it would be a good idea to add a
thirdrestriction to those listed on that page: that a file system backup will only work between the same OS and
architectureand is not suited to migrate between different types of systems. 

Regards
Thomas