lib/pubkey2fp.c: fix CID 62724 correctly.
xbps-rindex: fix CID 62741 correctly (untrusted value as argument)
lib/portableproplib/prop_data.c: CID 62728 (integer overflowed argument)
lib/portableproplib/prop_object.c: CID 62703 (argument cannot be negative)
lib/portableproplib/prop_object.c: CID 62694 (data race condition)