Some man commands fail with an error message (4290121)

Some /usr/man directories have permissions dr--r--r--.

Workaround: Add execute permission to the affected directories.

# chmod a+x /usr/man/sman1 /usr/man/sman3n /usr/man/sman3s
/usr/man/sman3t /usr/man/sman3x /usr/man/sman39f