Pin ubuntu version to allow running older Ruby

JonRowe · JonRowe · commit d9dccf3599ef · 2019-07-08T18:52:08.000+01:00
diff --git a/travis/.travis.yml b/travis/.travis.yml
@@ -1,3 +1,5 @@
+# In order to install old Rubies, we need to use old Ubuntu distibution.
+dist: trusty
 language: ruby
 email: false
 cache:

Original file line number	Diff line number	Diff line change
`@@ -1,3 +1,5 @@`
	`1`	`+# In order to install old Rubies, we need to use old Ubuntu distibution.`
	`2`	`+dist: trusty`
`1`	`3`	`language: ruby`
`2`	`4`	`email: false`
`3`	`5`	`cache:`