Fix build, missing spaces around =/<.

Change-Id: I2e7824075626a07eccb0a5eb77ef157214fe70fb
diff --git a/runtime/class_linker.cc b/runtime/class_linker.cc
index d1c158b..7f89156 100644
--- a/runtime/class_linker.cc
+++ b/runtime/class_linker.cc
@@ -4128,7 +4128,7 @@
         return false;
       }
       int len = super_class->GetVTableLength();
-      for (int i=0; i<len; i++) {
+      for (int i = 0; i < len; i++) {
         vtable->Set<false>(i, super_class->GetVTableEntry(i));
       }
     } else {