Update travis.yml.

.travis.yml

@@ -1,7 +1,19 @@
 language: php
 sudo: false
 php:
-  - '7.0'
+  - 7.0
+  - 7.1
+  - nightly
+  - hhvm
+
+matrix: 
+  allow_failures:
+    - php: hhvm
+
+cache:
+    directories:
+        - vendor
+        - $HOME/.composer/cache
 
 install:
   - phpenv config-rm xdebug.ini

app/Console/Commands/UpgradeFireflyInstructions.php

@@ -67,7 +67,7 @@ class UpgradeFireflyInstructions extends Command
     {
         $parts = explode("\n", wordwrap($text));
         foreach ($parts as $string) {
-            $this->line('| ' . sprintf("%-77s", $string) . '|');
+            $this->line('| ' . sprintf('%-77s', $string) . '|');
         }
     }
 
@@ -80,7 +80,7 @@ class UpgradeFireflyInstructions extends Command
     {
         $parts = explode("\n", wordwrap($text));
         foreach ($parts as $string) {
-            $this->info('| ' . sprintf("%-77s", $string) . '|');
+            $this->info('| ' . sprintf('%-77s', $string) . '|');
         }
     }