-* `none`: "merged `/usr`" has been reverted
-* `empty`: "merged `/usr`" has been reverted, `/usr` is empty (but the mandatory files)
-* `weak`: both directory schemes are allowed, packages only built on classical hosts
-* `middle`: both directory schemes are allowed, packages can be built anywhere
-* `hard`: both directory schemes are allowed, packages only built on "merged `/usr`" hosts
-* `all`: only "merged `/usr`" directory schemes are allowed, packages only built on "merged `/usr`" hosts
+* `none`: "merged `/usr`" has been reverted
+* `empty`: "merged `/usr`" has been reverted, `/usr` is empty (but the mandatory files)
+* `weak`: both directory schemes are allowed, all packages only built on classical hosts
+* `middle`: both directory schemes are allowed, all packages can be built on either
+* `hard`: both directory schemes are allowed, packages can be built on either, official packages only built on "merged `/usr`" hosts
+* `all`: only "merged `/usr`" directory schemes are allowed, packages only built on "merged `/usr`" hosts