whois: Update to version 5.5.21

whois: Update to version 5.5.21

- Update from version 5.5.18 to 5.5.21
- Update of rootfile not required
- Changelog
    5.5.21
	  * Updated the .cv and .sd TLD servers.
	  * Remove 4 new gTLDs which are no longer active.
    5.5.20
	  * Added the .gn TLD server.
	  * Removed 6 new gTLDs which are no longer active.
	  * Enabled getopt_long(3) support on Solaris.
    5.5.19
	  * Fixed english support for Japanese queries to not add again the /e
	    argument if it had already been provided by the user. (Closes: #1050171)
	  * Added the .ye and .বাংলা (.xn--54b7fta0cc, Bangladesh) TLD servers.
	  * Updated the .ba, .bb, .dk, .es, .gt, .jo, .ml, .mo, .pa, .pn, .sv,
	    .uy, .ﺍﻻﺭﺪﻧ (.xn--mgbayh7gpa, Jordan) and .澳門 (.xn--mix891f, Macao)
	    TLD servers.
	  * Upgraded the TLD URLs to HTTPS whenever possible.
	  * Updated the charset for whois.jprs.jp.
	  * Removed 3 new gTLDs which are no longer active.
	  * Removed support for the obsolete as32 dot notation.

Signed-off-by: Adolf Belka <adolf.belka@ipfire.org>
Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>