installer: change the "Next" label to "Install" just before installing

The last wizard page before the installation starts should give the user
an indication that this is what is going to happen.

Signed-off-by: Johannes Schindelin <[email protected]>

Author: dscho

installer/install.iss

@@ -338,6 +338,7 @@ var
     ProcessesPage:TWizardPage;
     ProcessesListBox:TListBox;
     ProcessesRefresh,ContinueButton:TButton;
+    PageIDBeforeInstall:Integer;
 #ifdef DEBUG_WIZARD_PAGE
     DebugWizardPage:Integer;
 #endif
@@ -1112,6 +1113,8 @@ begin
     // This button is only used by the uninstaller.
     ContinueButton:=NIL;
 
+    PageIDBeforeInstall:=ExtraOptionsPage.ID;
+
 #ifdef DEBUG_WIZARD_PAGE
     DebugWizardPage:={#DEBUG_WIZARD_PAGE}.ID;
 #endif
@@ -1147,9 +1150,14 @@ begin
             // This will be checked later again when the user clicks "Next".
             WizardForm.DirEdit.Text:=ExpandConstant('{userpf}\{#APP_NAME}');
         end;
+    end else if CurPageID=PageIDBeforeInstall then begin
+        RefreshProcessList(NIL);
+        if GetArrayLength(Processes)=0 then
+            WizardForm.NextButton.Caption:=SetupMessage(msgButtonInstall);
     end else if (ProcessesPage<>NIL) and (CurPageID=ProcessesPage.ID) then begin
         // Show the "Refresh" button only on the processes page.
         ProcessesRefresh.Show;
+        WizardForm.NextButton.Caption:=SetupMessage(msgButtonInstall);
     end else begin
         ProcessesRefresh.Hide;
     end;