Merge branch 'kerrizor/update-specs-to-clear-redis-between-runs' into 'master'

Update test to clean redis between runs

See merge request gitlab-org/gitlab!64548

spec/lib/gitlab/diff/position_tracer/line_strategy_spec.rb

@@ -2,7 +2,7 @@
 
 require 'spec_helper'
 
-RSpec.describe Gitlab::Diff::PositionTracer::LineStrategy do
+RSpec.describe Gitlab::Diff::PositionTracer::LineStrategy, :clean_gitlab_redis_cache do
   # Douwe's diary                                    New York City, 2016-06-28
   # --------------------------------------------------------------------------
   #