• Roll-back attempts to mimic rename(2) atomicity introduced in 1.47, and follow the letter of the POSIX specification.

• Moving a directory to an existing non-empty directory will now fail, as required.

• Improve consistency and remove some style bugs of earlier versions.

This version passes all tests of tools/regression/bin/mv/regress.sh 1.6

Reviewed by: bde
MFC after: 1 month