Improve the deletion of the old versions installed in /usr/lib.
Improve the deletion of the old versions installed in /usr/lib.

wxsBSD/libhtp,wxsBSD/libhtp,regit/libhtp,regit/libhtp,montekki/libhtp,OISF/libhtp,regit/libhtp,montekki/libhtp,glongo/libhtp,regit/libhtp,glongo/libhtp,montekki/libhtp,wxsBSD/libhtp,OISF/libhtp,OISF/libhtp,wxsBSD/libhtp,wxsBSD/libhtp,glongo/libhtp,montekki/libhtp,wxsBSD/libhtp,regit/libhtp,montekki/libhtp,wxsBSD/libhtp,OISF/libhtp,montekki/libhtp,montekki/libhtp,glongo/libhtp,OISF/libhtp,glongo/libhtp,glongo/libhtp,OISF/libhtp,glongo/libhtp,OISF/libhtp