Move logging of hostname to /showip

This is an easily overlooked bit of potentially personally identifying
information. It may be the "computer's name" on personal machines. So
don't log it by default.

Author: slipher

src/engine/qcommon/net_ip.cpp

@@ -170,6 +170,8 @@ struct nip_localaddr_t
 	struct sockaddr_storage netmask;
 };
 
+// Used to get local IP list. Saved here just to ensure /showip shows the same one that we used
+static char hostname[ 256 ];
 // Used for Sys_IsLANAddress
 static nip_localaddr_t localIP[ MAX_IPS ];
 static int             numIP;
@@ -895,6 +897,8 @@ class ShowIPCommand : public Cmd::StaticCmd
 
 	void Run( const Cmd::Args & ) const override
 	{
+		Print( "Hostname: %s", hostname );
+
 		int  i;
 		char addrbuf[ NET_ADDR_STR_MAX_LEN ];
 
@@ -1516,20 +1520,18 @@ static void NET_GetLocalAddress()
 #else
 static void NET_GetLocalAddress()
 {
-	char            hostname[ 256 ];
 	struct addrinfo hint;
 
 	struct addrinfo *res = nullptr;
 
 	numIP = 0;
 
-	if ( gethostname( hostname, 256 ) == SOCKET_ERROR )
+	if ( gethostname( hostname, sizeof( hostname ) ) == SOCKET_ERROR )
 	{
+		*hostname = '\0';
 		return;
 	}
 
-	Log::Notice( "Hostname: %s", hostname );
-
 	memset( &hint, 0, sizeof( hint ) );
 
 	hint.ai_family = AF_UNSPEC;