fixed the whiledir tag.

__read.cpp

@@ -13,10 +13,10 @@ namespace jet {
 	throw coreutils::Exception("name keyword must be specified.");
       if(hasContainer)
 	throw coreutils::Exception("read tag does not have a container.");
-      fd = open(keywords[resolveKeyword("file")].c_str(), O_RDONLY);
+      fd = open(resolveKeyword("file").c_str(), O_RDONLY);
       if(fd < 0)
 	throw coreutils::Exception("file name is not found.");
-      global.variables[keywords[resolveKeyword("name")]].read(fd);
+      global.variables[resolveKeyword("name")].read(fd);
       close(fd);      
    }