fix inconsistent enumerator bug in fix ave/histo vs fix ave/histo/weight

src/fix_ave_histo_weight.cpp

@@ -33,7 +33,7 @@ using namespace FixConst;
 enum{X,V,F,COMPUTE,FIX,VARIABLE};
 enum{ONE,RUNNING};
 enum{SCALAR,VECTOR,WINDOW};
-enum{GLOBAL,PERATOM,LOCAL};
+enum{DEFAULT,GLOBAL,PERATOM,LOCAL};
 enum{IGNORE,END,EXTRA};
 enum{SINGLE,VALUE};