use space

Author: Xing Tian

include/boost/compute/detail/lru_cache.hpp

@@ -97,7 +97,7 @@ class lru_cache
             m_list.push_front(key);
 
             // update iterator in map
-						i->second.second = m_list.begin();
+            i->second.second = m_list.begin();
         }
         // return the value
         return i->second.first;