Fix style on vm_ivar benchmarks (#6379)

Merged-By: k0kubun <takashikkbn@gmail.com>

benchmark/vm_ivar_get.yml

@@ -1,33 +1,33 @@
 prelude: |
   class Example
-      def initialize
-          @v0 = 1
-          @v1 = 2
-          @v3 = 3
-          @levar = 1
+    def initialize
+      @v0 = 1
+      @v1 = 2
+      @v3 = 3
+      @levar = 1
+    end
+
+    def get_value_loop
+      sum = 0
+
+      i = 0
+      while i < 1000000
+        # 10 times to de-emphasize loop overhead
+        sum += @levar
+        sum += @levar
+        sum += @levar
+        sum += @levar
+        sum += @levar
+        sum += @levar
+        sum += @levar
+        sum += @levar
+        sum += @levar
+        sum += @levar
+        i += 1
       end
 
-      def get_value_loop
-          sum = 0
-
-          i = 0
-          while i < 1000000
-              # 10 times to de-emphasize loop overhead
-              sum += @levar
-              sum += @levar
-              sum += @levar
-              sum += @levar
-              sum += @levar
-              sum += @levar
-              sum += @levar
-              sum += @levar
-              sum += @levar
-              sum += @levar
-              i += 1
-          end
-
-          return sum
-      end
+      return sum
+    end
   end
 
   obj = Example.new

benchmark/vm_ivar_get_unintialized.yml

@@ -1,5 +1,5 @@
 prelude: |
-  class Example 
+  class Example
     def read
       @uninitialized
     end

benchmark/vm_ivar_lazy_set.yml

@@ -1,5 +1,5 @@
 prelude: |
-  class Example 
+  class Example
     def lazy_set
       @uninitialized ||= 123
     end