.travis.yml in squib-0.15.2 vs .travis.yml in squib-0.15.3

@@ -1,17 +1,17 @@
-language: ruby
-sudo: true # need this for libgirepository1.0-dev
-addons:
-  apt:
-    packages:
-      - libgirepository1.0-dev # for gobject-introspection
-rvm:
-  - 2.4.2
-  - 2.5.3
-  - 2.6.3
-  - ruby-head
-before_install:
-  - gem update --system
-  - gem install bundler
-matrix:
-  allow_failures:
-    - rvm: ruby-head
+language: ruby
+sudo: true # need this for libgirepository1.0-dev
+addons:
+  apt:
+    packages:
+      - libgirepository1.0-dev # for gobject-introspection
+rvm:
+  - 2.4.2
+  - 2.5.3
+  - 2.6.3
+  - ruby-head
+before_install:
+  - gem update --system
+  - gem install bundler
+matrix:
+  allow_failures:
+    - rvm: ruby-head