ART: Fix missing space (cpplint error).

Test: N/A
Bug: 252718800
Change-Id: Id693ee22df350d4ab9a583f1738ac2914d9cffeb
diff --git a/compiler/common_compiler_test.cc b/compiler/common_compiler_test.cc
index 618d80b..24872d3 100644
--- a/compiler/common_compiler_test.cc
+++ b/compiler/common_compiler_test.cc
@@ -158,7 +158,7 @@
 
   void SetThunkCode(const linker::LinkerPatch& patch ATTRIBUTE_UNUSED,
                     ArrayRef<const uint8_t> code ATTRIBUTE_UNUSED,
-                    const std::string& debug_name ATTRIBUTE_UNUSED) override{
+                    const std::string& debug_name ATTRIBUTE_UNUSED) override {
     LOG(FATAL) << "Unsupported.";
     UNREACHABLE();
   }