When Portage installs a file into a protected directory tree like /etc, any
existing files will not be overwritten. If a file of the same name already
-exists, Portage will change the name of the to-be- installed file from 'foo' to
+exists, Portage will change the name of the to-be-installed file from 'foo' to
'._cfg0000_foo'. If '._cfg0000_foo' already exists, this name becomes
'._cfg0001_foo', etc. In this way, existing files are not overwritten,
allowing the administrator to manually merge the new config files and avoid any