* lib/getaddrinfo.c (getnameinfo): Use new lightweight uinttostr, in place of snprintf. * modules/inttostr (Files): Add lib/uinttostr.c. * lib/uinttostr.c (inttostr): New file/function. * lib/inttostr.h (uinttostr): Declare. * m4/inttostr.m4: Add AC_LIBOBJ([uinttostr]). * MODULES.html.sh (Numeric conversion functions <stdlib.h>): Add uinttostr. * modules/getaddrinfo (Depends-on): Remove snprintf. Add inttostr.