Fix: Work around build failures on PHP 7.4

localheinz · sebastianbergmann · commit 7dd6276b64a2 · 2019-04-26T15:53:05.000+02:00
diff --git a/.travis.yml b/.travis.yml
@@ -1,5 +1,9 @@
 language: php
 
+addons:
+  apt:
+    packages:
+      - libonig-dev
 php:
   - 7.2
   - 7.3
