whois: bump to version 5.2.17

Fixes serious usability issues (Debian changelog):

  * Fixed whois referrals for .com, .net, .jobs, .bz, .cc and .tv,
    broken by an ICANN-mandated output change:
    https://www.icann.org/resources/pages/rdds-labeling-policy-2017-02-01-en

Use snapshot.debian.org for the .dsc reference, since files tend to
disappear from the official Debian ftp site over time.

Cc: Gustavo Zacarias <gustavo@zacarias.com.ar>
Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
(cherry picked from commit 978724d8cf487f285c85473e75482ae6a618a2a6)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/whois/whois.hash

@@ -1,2 +1,2 @@
-# From http://ftp.debian.org/debian/pool/main/w/whois/whois_5.2.14.dsc
-sha256	a41daf41abed0fbfa8c9c4b0e4a3f5f22d9876dd6feb9091aac12f8f4c38b0d2	whois_5.2.14.tar.xz
+# From http://snapshot.debian.org/archive/debian/20170727T214450Z/pool/main/w/whois/whois_5.2.17.dsc
+sha256	257585678f571e18964667b41dc6543fe9da6123ac95743660c9c3ae1eba9664	whois_5.2.17.tar.xz

package/whois/whois.mk

@@ -4,8 +4,8 @@
 #
 ################################################################################
 
-WHOIS_VERSION = 5.2.14
-WHOIS_SITE = http://snapshot.debian.org/archive/debian/20161230T032015Z/pool/main/w/whois
+WHOIS_VERSION = 5.2.17
+WHOIS_SITE = http://snapshot.debian.org/archive/debian/20170727T214450Z/pool/main/w/whois
 WHOIS_SOURCE = whois_$(WHOIS_VERSION).tar.xz
 # take precedence over busybox implementation
 WHOIS_DEPENDENCIES = host-gettext $(if $(BR2_PACKAGE_BUSYBOX),busybox)