Handle Home and End keys in varnishstat.

This has bugged me (slightly) for ages.

Too trivial to warrant its own line(s) in test-case/u00008.vtc.

bin/varnishstat/varnishstat_curses.c

@@ -890,6 +890,12 @@ handle_keypress(int ch)
 		if (page_start + l_points < n_ptarray - 1)
 			page_start += l_points;
 		break;
+	case KEY_HOME:
+		current = 0;
+		break;
+	case KEY_END:
+		current = n_ptarray - 1;
+		break;
 	case 'd':
 		hide_unseen = 1 - hide_unseen;
 		rebuild = 1;

doc/sphinx/reference/varnishstat.rst

@@ -85,6 +85,12 @@ The following keys control the interactive display:
 <PAGEDOWN> or <SPACE>
 	Navigate the counter list one page down.
 
+<HOME>
+	Navigate the counter list to the top.
+
+<END>
+	Navigate the counter list to the bottom.
+
 <d>
 	Toggle between showing and hiding unseen counters. Unseen
 	counters are those that has been zero for the entire runtime