Add return types

Author: duncanmcclean

src/NewCommand.php

@@ -126,7 +126,7 @@ protected function interact(InputInterface $input, OutputInterface $output)
      *
      * @return int
      */
-    protected function execute(InputInterface $input, OutputInterface $output)
+    protected function execute(InputInterface $input, OutputInterface $output): int
     {
         try {
             $this

src/UpdateCommand.php

@@ -32,7 +32,7 @@ protected function configure()
      *
      * @return int
      */
-    protected function execute(InputInterface $input, OutputInterface $output)
+    protected function execute(InputInterface $input, OutputInterface $output): int
     {
         $this->input = $input;
         $this->output = $output;

src/VersionCommand.php

@@ -25,7 +25,7 @@ protected function configure()
      *
      * @return int
      */
-    protected function execute(InputInterface $input, OutputInterface $output)
+    protected function execute(InputInterface $input, OutputInterface $output): int
     {
         $please = new Please($output);