Fix presubmit error.

BUG=
TEST=

Review URL: http://codereview.chromium.org/6791011

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7480 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/x64/assembler-x64.cc

@@ -398,7 +398,7 @@ Assembler::Assembler(Isolate* arg_isolate, void* buffer, int buffer_size)
 
 Assembler::~Assembler() {
   if (own_buffer_) {
-    if (isolate() != NULL && 
+    if (isolate() != NULL &&
         isolate()->assembler_spare_buffer() == NULL &&
         buffer_size_ == kMinimalBufferSize) {
       isolate()->set_assembler_spare_buffer(buffer_);