minorbug(mv): using -m leads to vague error messages

[HackingRepo]

Hi, uutils mainteners

we confirmed that using

relunsec@relunsec:~/software/coreutils/target/debug$ ./mkdir -m777 h/d
mkdir: No such file or directory
relunsec@relunsec:~/software/coreutils/target/debug$ gnumkdir -m777 h/d
gnumkdir: cannot create directory ‘h/d’: No such file or directory
relunsec@relunsec:~/software/coreutils/target/debug$ 

gnu says what dir that failed, uu just says no such file or directory no explanation at all