(CONT-807) Correct Style/FormatString

Author: chelnak

lib/puppetlabs_spec_helper/rake_tasks.rb

@@ -241,9 +241,9 @@
   # More info can be found at https://tickets.puppetlabs.com/browse/FM-6170
   new_version = if (build = ENV.fetch('BUILD_NUMBER', nil))
                   if branch.eql? 'release'
-                    '%s-%s%04d-%s' % [version, 'r', build, sha] # legacy support code
+                    format('%s-%s%04d-%s', version, 'r', build, sha) # legacy support code
                   else
-                    '%s-%04d-%s' % [version, build, sha] # legacy support code
+                    format('%s-%04d-%s', version, build, sha) # legacy support code
                   end
                 else
                   "#{version}-#{sha}"