diff --git a/auto/generate_module.rb b/auto/generate_module.rb
index 0b5024b..128d36b 100644
--- a/auto/generate_module.rb
+++ b/auto/generate_module.rb
@@ -53,7 +53,7 @@ class UnityModuleGenerator
   def initialize(options = nil)
     @options = UnityModuleGenerator.default_options
     case options
-    when NilClass then @options
+    when NilClass then nil # leave @options unchanged
     when String   then @options.merge!(UnityModuleGenerator.grab_config(options))
     when Hash     then @options.merge!(options)
     else raise 'If you specify arguments, it should be a filename or a hash of options'
@@ -158,10 +158,10 @@ class UnityModuleGenerator
           template: cfg[:template],
           test_define: cfg[:test_define],
           boilerplate: cfg[:boilerplate],
-          includes: case (cfg[:inc])
-                    when :src then (@options[:includes][:src] || []) | (pattern_traits[:inc].map { |f| format(f, module_name) })
+          includes: case cfg[:inc]
+                    when :src then (@options[:includes][:src] || []) | pattern_traits[:inc].map { |f| format(f, module_name) }
                     when :inc then  @options[:includes][:inc] || []
-                    when :tst then (@options[:includes][:tst] || []) | (pattern_traits[:inc].map { |f| format("#{@options[:mock_prefix]}#{f}", module_name) })
+                    when :tst then (@options[:includes][:tst] || []) | pattern_traits[:inc].map { |f| format("#{@options[:mock_prefix]}#{f}", module_name) }
                     end
         }
       end
@@ -182,7 +182,7 @@ class UnityModuleGenerator
   ############################
   def create_filename(part1, part2 = '')
     name = part2.empty? ? part1 : "#{part1}_#{part2}"
-    case (@options[:naming])
+    case @options[:naming]
     when 'bumpy' then neutralize_filename(name, start_cap: false).delete('_')
     when 'camel' then neutralize_filename(name).delete('_')
     when 'snake' then neutralize_filename(name).downcase
diff --git a/auto/generate_test_runner.rb b/auto/generate_test_runner.rb
index c5db5ab..95b4742 100755
--- a/auto/generate_test_runner.rb
+++ b/auto/generate_test_runner.rb
@@ -11,7 +11,7 @@ class UnityTestRunnerGenerator
     @options = UnityTestRunnerGenerator.default_options
     case options
     when NilClass
-      @options
+      nil # leave @options unchanged
     when String
       @options.merge!(UnityTestRunnerGenerator.grab_config(options))
     when Hash
@@ -72,7 +72,7 @@ class UnityTestRunnerGenerator
     source = source.force_encoding('ISO-8859-1').encode('utf-8', replace: nil)
     tests = find_tests(source)
     headers = find_includes(source)
-    testfile_includes = @options[:use_system_files] ? (headers[:local] + headers[:system]) : (headers[:local])
+    testfile_includes = @options[:use_system_files] ? (headers[:local] + headers[:system]) : headers[:local]
     used_mocks = find_mocks(testfile_includes)
     testfile_includes = (testfile_includes - used_mocks)
     testfile_includes.delete_if { |inc| inc =~ /(unity|cmock)/ }
@@ -446,7 +446,7 @@ class UnityTestRunnerGenerator
 
   def create_main(output, filename, tests, used_mocks)
     output.puts("\n/*=======MAIN=====*/")
-    main_name = @options[:main_name].to_sym == :auto ? "main_#{filename.gsub('.c', '')}" : (@options[:main_name]).to_s
+    main_name = @options[:main_name].to_sym == :auto ? "main_#{filename.gsub('.c', '')}" : @options[:main_name].to_s
     if @options[:cmdline_args]
       if main_name != 'main'
         output.puts("#{@options[:main_export_decl]} int #{main_name}(int argc, char** argv);")
@@ -462,12 +462,12 @@ class UnityTestRunnerGenerator
       output.puts("      UnityPrint(\"#{filename.gsub('.c', '').gsub(/\\/, '\\\\\\')}.\");")
       output.puts('      UNITY_PRINT_EOL();')
       tests.each do |test|
-        if (!@options[:use_param_tests]) || test[:args].nil? || test[:args].empty?
+        if !@options[:use_param_tests] || test[:args].nil? || test[:args].empty?
           output.puts("      UnityPrint(\"  #{test[:test]}\");")
           output.puts('      UNITY_PRINT_EOL();')
         else
           test[:args].each do |args|
-            output.puts("      UnityPrint(\"  #{test[:test]}(#{args.gsub('"','').gsub("\n",'')})\");")
+            output.puts("      UnityPrint(\"  #{test[:test]}(#{args.gsub('"', '').gsub("\n", '')})\");")
             output.puts('      UNITY_PRINT_EOL();')
           end
         end
@@ -505,7 +505,7 @@ class UnityTestRunnerGenerator
     output.puts
     idx = 0
     tests.each do |test|
-      if (!@options[:use_param_tests]) || test[:args].nil? || test[:args].empty?
+      if !@options[:use_param_tests] || test[:args].nil? || test[:args].empty?
         output.puts("  run_test_params_arr[#{idx}].func = #{test[:test]};")
         output.puts("  run_test_params_arr[#{idx}].name = \"#{test[:test]}\";")
         output.puts("  run_test_params_arr[#{idx}].line_num = #{test[:line_number]};")
diff --git a/examples/example_3/rakefile_helper.rb b/examples/example_3/rakefile_helper.rb
index be73b18..0d52fda 100644
--- a/examples/example_3/rakefile_helper.rb
+++ b/examples/example_3/rakefile_helper.rb
@@ -113,7 +113,7 @@ end
 def link_it(exe_name, obj_list)
   linker = build_linker_fields
   cmd_str = "#{linker[:command]}#{linker[:options]}#{linker[:includes]}"
-  cmd_str += " #{(obj_list.map { |obj| "#{$cfg['linker']['object_files']['path']}#{obj}" }).join(' ')}"
+  cmd_str += " #{obj_list.map { |obj| "#{$cfg['linker']['object_files']['path']}#{obj}" }.join(' ')}"
   cmd_str += " #{$cfg['linker']['bin_files']['prefix']} "
   cmd_str += $cfg['linker']['bin_files']['destination']
   cmd_str += exe_name + $cfg['linker']['bin_files']['extension']
diff --git a/src/unity.c b/src/unity.c
index 7933edd..84d6729 100644
--- a/src/unity.c
+++ b/src/unity.c
@@ -35,7 +35,7 @@ const char UNITY_PROGMEM UnityStrFail[]                          = "FAIL";
 const char UNITY_PROGMEM UnityStrIgnore[]                        = "IGNORE";
 #endif
 static const char UNITY_PROGMEM UnityStrNull[]                   = "NULL";
-static const char UNITY_PROGMEM UnityStrSpacer[]                 = ". ";
+static const char UNITY_PROGMEM UnityStrSpacer[]                 = UNITY_FAILURE_DETAIL_SEPARATOR;
 static const char UNITY_PROGMEM UnityStrExpected[]               = " Expected ";
 static const char UNITY_PROGMEM UnityStrWas[]                    = " Was ";
 static const char UNITY_PROGMEM UnityStrGt[]                     = " to be greater than ";
diff --git a/src/unity_internals.h b/src/unity_internals.h
index 0ea22fb..e8a26ad 100644
--- a/src/unity_internals.h
+++ b/src/unity_internals.h
@@ -432,6 +432,10 @@ typedef UNITY_FLOAT_TYPE UNITY_FLOAT;
 #define UNITY_PRINT_EXEC_TIME() do { /* nothing*/ } while (0)
 #endif
 
+#ifndef UNITY_FAILURE_DETAIL_SEPARATOR
+#define UNITY_FAILURE_DETAIL_SEPARATOR ":"
+#endif
+
 /*-------------------------------------------------------
  * Footprint
  *-------------------------------------------------------*/
diff --git a/test/rakefile b/test/rakefile
index f278d42..cb7e82c 100644
--- a/test/rakefile
+++ b/test/rakefile
@@ -157,7 +157,7 @@ namespace :style do
   end
 
   task :clean do
-    File.delete(".rubocop_todo.yml") if File.exists?(".rubocop_todo.yml")
+    File.delete(".rubocop_todo.yml") if File.exist?(".rubocop_todo.yml")
   end
 end