avoid last , in enums parsing

generator/cpp2ffi.lua

@@ -1094,9 +1094,11 @@ function M.Parser()
 						else --should be string
 							value = prevvalue .. "+1"
 						end
+						if name then --avoid last , if present
 						table.insert(outtab.enums[enumname],{name=name,value=value})
 						end
 					end
+				end
 			elseif it.re_name == "struct_re" then
 				local cleanst,structname,strtab = self:clean_struct(it.item)
 				--if not void stname or templated