Remove default value for refresh option, fixes #22

The default value was making the refresh option have a value even if
the input option was omitted from the command. I believe this is a bug
in Symfony Command. I’ve removed the default value, and now the `-r`
option requires a value.

src/Resume/Command/HtmlCommand.php

@@ -33,17 +33,15 @@ class HtmlCommand extends Command
             ->addOption(
                 'template',
                 't',
-                InputOption::VALUE_OPTIONAL,
+                InputOption::VALUE_REQUIRED,
                 'Which of the templates to use'
             )
             ->addOption(
                 'refresh',
                 'r',
-                InputOption::VALUE_OPTIONAL,
+                InputOption::VALUE_REQUIRED,
                 'Regenerate the html and include a meta command to refresh the ' .
-                'document every periodically. Measured in seconds. Defaults to' .
-                '5 seconds',
-                5
+                'document every periodically. Measured in seconds.'
             );
     }
 

src/Resume/Command/PdfCommand.php

@@ -27,7 +27,7 @@ class PdfCommand extends HtmlCommand
             ->addOption(
                 'template',
                 't',
-                InputOption::VALUE_OPTIONAL,
+                InputOption::VALUE_REQUIRED,
                 'Which of the templates to use'
             );
     }