Hello,

I found that it is very difficult to find information about the issue when one encounters the following error after using --set option:

# setfacl --set u:user:r file
setfacl: file: Malformed access ACL `user:user:r--,mask::r--': Missing or wrong entry at entry 1


I believe the man page for setfacl is the best place to mention that one must include mandatory ACL entries for owner, group owner, and others when --set(-file) option is used:

# setfacl --set u::r,g::-,o::-,u:user:r file


Many thanks in advance!