Fix incorrectly testing of HTP_PATH_UTF8_INVALID.
Fix incorrectly testing of HTP_PATH_UTF8_INVALID.

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