Fix cpplint whitespace/parens issues

Change-Id: Ifc678d59a8bed24ffddde5a0e543620b17b0aba9
diff --git a/compiler/dex/arena_bit_vector.h b/compiler/dex/arena_bit_vector.h
index de30859..2a05b77 100644
--- a/compiler/dex/arena_bit_vector.h
+++ b/compiler/dex/arena_bit_vector.h
@@ -83,7 +83,7 @@
                    OatBitMapKind kind = kBitMapMisc);
     ~ArenaBitVector() {};
 
-    static void* operator new( size_t size, ArenaAllocator* arena) {
+    static void* operator new(size_t size, ArenaAllocator* arena) {
       return arena->NewMem(sizeof(ArenaBitVector), true, ArenaAllocator::kAllocGrowableBitMap);
     }
     static void operator delete(void* p) {};  // Nop.