Just use the system's bundler version

Author: kpaulisse

.travis.yml

@@ -4,9 +4,6 @@ language: ruby
 install: true
 script: "script/cibuild"
 
-before_install:
-  - gem install bundler -v 1.15.4
-
 matrix:
   include:
     # Build with latest ruby

octocatalog-diff.gemspec

@@ -29,7 +29,6 @@ EOF
   s.add_runtime_dependency 'hashdiff', '>= 0.3.0'
   s.add_runtime_dependency 'rugged', '>= 0.25.0b2'
 
-  s.add_development_dependency 'bundler', '1.15.4'
   s.add_development_dependency 'rspec', '~> 3.4.0'
   s.add_development_dependency 'rake', '11.2.2'
   s.add_development_dependency 'parallel_tests', '2.7.1'

script/bundle

@@ -49,7 +49,7 @@ if [ "$RUBOCOP_TEST" = "true" ]; then
   echo ""
 
   bootstrap
-  time "$DIR/script/bundle" exec rake rubocop
+  time bundle exec rake rubocop
   RUBOCOP_EXITCODE=$?
   echo ""
 else
@@ -90,7 +90,7 @@ if [ "$RSPEC_TEST" = "true" ]; then
 
     # Run the tests
     echo "Running tests"
-    time "$DIR/script/bundle" exec rake test
+    time bundle exec rake test
     exitcode=$?
     if [ "$exitcode" -ne 0 ]; then RSPEC_EXITCODE="$exitcode"; fi
     cat "$OUTPUT_FILE"