Spaces and various other characters in pathnames are not passed through
literally by xargs in its default mode. Instead, use find . -exec ... {} +
Although the -- argument is not strictly required here, add it anyway to
avoid surprises when modifying the code to find -f -somedir ...
MFC after: 1 week
This option checks for empty pathnames and components starting with '-'.
Our -p option also checks for the latter, which remains the case.
MFC after: 1 week
