"Permission denied" is common and should not have a scary message

[Redsandro]

I was running rdfind on a backup drive. I got hundreds of these scary messages:

Dirlist.cc::handlepossiblefile: This should never happen. FIXME! details on the next row:

Comments in the code suggests files were possibly open and written to by someone else.

rdfind/Dirlist.cc

Lines 162 to 169 in fa7752d

	std::cerr << "Dirlist.cc::handlepossiblefile: This should never happen. "
	"FIXME! details on the next row:\n";
	std::cerr << "possiblefile=\"" << possiblefile << "\"\n";
	// this should never happen, because this function is only to be called
	// for items that can not be opened with opendir.
	// maybe it happens if someone else is changing the file while we
	// are reading it?
	return -2;

Turns out those dirs were simply owned by other users. Workaround: use sudo.

I suggest a permission/user check and a less alarming error message.

[pauldreik]

I agree this text is too alarming.