Add "last" action to move the cursor to the last match

This is the opposite of "first" (previously known as "top").

src/options.go

@@ -879,8 +879,10 @@ func parseKeymap(keymap map[int][]action, str string) {
 				appendAction(actDown)
 			case "up":
 				appendAction(actUp)
-			case "top":
-				appendAction(actTop)
+			case "first", "top":
+				appendAction(actFirst)
+			case "last":
+				appendAction(actLast)
 			case "page-up":
 				appendAction(actPageUp)
 			case "page-down":

src/options_test.go

@@ -246,7 +246,7 @@ func TestBind(t *testing.T) {
 			"f1:execute(ls {+})+abort+execute(echo {+})+select-all,f2:execute/echo {}, {}, {}/,f3:execute[echo '({})'],f4:execute;less {};,"+
 			"alt-a:execute-Multi@echo (,),[,],/,:,;,%,{}@,alt-b:execute;echo (,),[,],/,:,@,%,{};,"+
 			"x:Execute(foo+bar),X:execute/bar+baz/"+
-			",f1:+top,f1:+top"+
+			",f1:+first,f1:+top"+
 			",,:abort,::accept,+:execute:++\nfoobar,Y:execute(baz)+up")
 	check(tui.CtrlA, "", actKillLine)
 	check(tui.CtrlB, "", actToggleSort, actUp, actDown)
@@ -254,7 +254,7 @@ func TestBind(t *testing.T) {
 	check(tui.AltZ+',', "", actAbort)
 	check(tui.AltZ+':', "", actAccept)
 	check(tui.AltZ, "", actPageDown)
-	check(tui.F1, "ls {+}", actExecute, actAbort, actExecute, actSelectAll, actTop, actTop)
+	check(tui.F1, "ls {+}", actExecute, actAbort, actExecute, actSelectAll, actFirst, actFirst)
 	check(tui.F2, "echo {}, {}, {}", actExecute)
 	check(tui.F3, "echo '({})'", actExecute)
 	check(tui.F4, "less {}", actExecute)

src/terminal.go

@@ -265,7 +265,8 @@ const (
 	actExecuteSilent
 	actExecuteMulti // Deprecated
 	actSigStop
-	actTop
+	actFirst
+	actLast
 	actReload
 )
 
@@ -2366,9 +2367,12 @@ func (t *Terminal) Loop() {
 					t.version++
 					req(reqList, reqInfo)
 				}
-			case actTop:
+			case actFirst:
 				t.vset(0)
 				req(reqList)
+			case actLast:
+				t.vset(t.merger.Length() - 1)
+				req(reqList)
 			case actUnixLineDiscard:
 				beof = len(t.input) == 0
 				if t.cx > 0 {