From b541b53b78f9df5ae0822f3665dc8f0959436cdf Mon Sep 17 00:00:00 2001
From: Colin Seymour <colin@github.com>
Date: Thu, 24 Aug 2017 10:17:12 +0100
Subject: [PATCH] Byebug requires Ruby 2.2 (#3790)

Also don't attempt to install it during testing.
---
 .travis.yml | 2 ++
 Gemfile     | 5 ++++-
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/.travis.yml b/.travis.yml
index e5f78977..fe949020 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -32,3 +32,5 @@ git:
 
 cache: bundler
 dist: precise
+
+bundler_args: --without debug
diff --git a/Gemfile b/Gemfile
index 9dc1b4dc..06ed0c3e 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,3 +1,6 @@
 source 'https://rubygems.org'
 gemspec :name => "github-linguist"
-gem 'byebug' if RUBY_VERSION >= '2.0'
+
+group :debug do
+  gem 'byebug' if RUBY_VERSION >= '2.2'
+end