Call `endspent' to try to close the shadow password file.

git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@820 ec53bebd-3082-4978-b11e-865c3cabbd6b

lib/roken/k_getpwnam.c

@@ -22,6 +22,7 @@ k_getpwnam (char *user)
 	  spwd = getspnam (user);
 	  if (spwd)
 	       p->pw_passwd = spwd->sp_pwdp;
+	  endspent ();
      }
 #endif
      return p;