net/vinagre: patch for support passwords more than 8 chars

- support ARD (OS-X remote desktop)
- increase the lenght of passwords which can be entered from 8 to 32

The upstream issue with 9 years discussion:
        https://bugzilla.gnome.org/show_bug.cgi?id=652334
Idea of the patch with description:
        https://bugzilla.gnome.org/show_bug.cgi?id=666598
The max length 32 from here:
        https://www.mac-forums.com/threads/maximum-length-of-passwords.317066/

PR:		248196
Submitted by:	VVD <vvd@unislabs.com>
Approved by:	desktop

net/vinagre/Makefile

@@ -3,7 +3,7 @@
 
 PORTNAME=	vinagre
 PORTVERSION=	3.22.0
-PORTREVISION=	2
+PORTREVISION=	3
 CATEGORIES=	net gnome
 MASTER_SITES=	GNOME
 DIST_SUBDIR=	gnome3

net/vinagre/files/patch-plugins_vnc_vinagre-vnc-tab.c

@@ -0,0 +1,20 @@
+Increase the accepted length of passwords.
+
+- VNC only accepts 8 characters; however some impelementations allow for longer
+  passwords to be used. Increase the passwords that can be entered to 32 chars.
+
+https://bugzilla.gnome.org/show_bug.cgi?id=652334
+https://gitlab.gnome.org/GNOME/vinagre/-/issues/17
+https://bugzilla.redhat.com/show_bug.cgi?id=1767963
+
+--- plugins/vnc/vinagre-vnc-tab.c.orig
++++ plugins/vnc/vinagre-vnc-tab.c
+@@ -508,7 +508,7 @@
+ 	{
+ 	  host = vinagre_connection_get_best_name (conn);
+ 	  if (!vinagre_utils_request_credential (window, "VNC", host, NULL, NULL,
+-	     FALSE, need_username, need_password, 8, NULL, &username, &password,
++	     FALSE, need_username, need_password, 32, NULL, &username, &password,
+ 	     &save_in_keyring))
+ 	    {
+ 	      vinagre_tab_remove_from_notebook (tab);