* dir.cc (rmdir): Don't skip deleting fh in the ENOTEMPTY case.
	* dir.cc (rmdir): Don't skip deleting fh in the ENOTEMPTY case.
	* net.cc (if_freenameindex): Don't catch a SEGV from free to fail
	loudly on double free.
	* miscfuncs.cc (__import_address): Cover the first dereference to imp
	under the fault handler.
	* miscfuncs.cc (__import_address): Cover the first dereference to imp
	under the fault handler.