package/zabbix: Fix white space in help text

Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/zabbix/Config.in

@@ -4,9 +4,9 @@ config BR2_PACKAGE_ZABBIX
 	select BR2_PACKAGE_PCRE
 	help
 	  Zabbix is an enterprise-class open source distributed
-	  monitoring solution.Zabbix is free of cost. Zabbix is written
-	  and distributed under the GPL General Public License version
-	  2.
+	  monitoring solution. Zabbix is free of cost. Zabbix is
+	  written and distributed under the GPL General Public License
+	  version 2.
 
 	  https://zabbix.com