exportfs: Fix left debug info

Patch for 497ffdf8 ('manpage: remove the no longer supported value
"vers2"') [1] didn't contain printf in exportfs.c (looks like debugging
info) and errno handling in stropts.c (maybe work on other patch) which
were applied. Thus removing it.

[1] https://lore.kernel.org/linux-nfs/20220117031356.13361-1-yoyang@redhat.com/raw

Signed-off-by: Petr Vorel <pvorel@suse.cz>
Signed-off-by: Steve Dickson <steved@redhat.com>
2 files changed