Fix formatting of one line.

src/ia32/assembler-ia32.h

Index: src/ia32/assembler-ia32.h
===================================================================
--- src/ia32/assembler-ia32.h	(revision 2102)
+++ src/ia32/assembler-ia32.h	(working copy)
@@ -79,7 +79,7 @@
   int code_;
 };
 
-const Register eax = {0};
+const Register eax = { 0 };
 const Register ecx = { 1 };
 const Register edx = { 2 };
 const Register ebx = { 3 };