* sysdeps/posix/getaddrinfo.c (gaih_addrtuple): Change type of
addr to avoid casts.
(gethosts): Removed.
(gethosts2): Renamed to gethosts. Make it usable for family !=
AF_UNSPEC. Fix AI_V4MAPPED.
(gaih_inet): Remove use of old gethosts. Always use what used to be
gethosts2. If entry is found, try to use the same NSS module's
getcanonname_r function. Use gethostbyaddr for AI_CANONNAME only
if getcanonname_r was not available. Fix filtering of AI_V4MAPPED
addresses. Numerous cleanups.
* resolv/nss_dns/dns-canon.c: New file.
* resolv/Makefile (libnss_dns-routines): Add dns-canon.
* resolv/Versions (libnss_dns): Add _nss_dns_getcanonname_r.
* elf/Makefile: Add rules to build and run tst-dlopenrpath.
* elf/tst-dlopenrpath.c: New file.
* elf/tst-dlopenrpathmod.c: New file.
* intl/tst-gettext.sh: Adjust for change of de.po file to UTF-8.
