Fix some potential resource leaks in dnsglue.c. To generate a diff of this commit: cvs diff -r5.483 -r5.484 krb5/src/ChangeLog cvs diff -r1.309 -r1.310 krb5/src/aclocal.m4 cvs diff -r5.416 -r5.417 krb5/src/lib/krb5/os/ChangeLog cvs diff -r5.3 -r5.4 krb5/src/lib/krb5/os/dnsglue.c