sysutils/e2fsprogs: update to new upstream release v1.46.0

https://git.kernel.org/pub/scm/fs/ext2/e2fsprogs.git/plain/doc/RelNotes/v1.46.0.txt?h=v1.46.0

The major item in porting is to switch from GNU libc's qsort_r()
interface to ours, but see https://reviews.freebsd.org/D17083

Also, it appears at cursory glance that it takes the FUSEFS option
to get HAVE_PTHREAD_H #defined. Just pass -DHAVE_PTHREAD_H through
CPPFLAGS without further investigation.

Finally, there appears to be some confusion around __u64 vs.
unsigned long long, we get format string complaints. Use <inttypes.h>
and leverage the PRIu64 macro.

I do not intend to MFH this.