htdig/ExternalParser.cc (parse): Fixed bug #1087186, give a meaningful error message if execv fails.
(cherry picked from commit b000f1dacfbc4ae9ee65a2fcde217ecbbe0c2640)
* htdig/ExternalParser.cc (parse): Fixed typo in variable name on line 285,
  from Jul 12 fix, caught by Anthony Arnone.
(cherry picked from commit fbb37dba767fe37f7c94ab7b0158950f59135f6b)
Fixes typo in htdig/ExternalParser.cc (data -> date)
Fixes CVE-2005-0085 XSS vulnerability.
Fixes CVE-2007-6110 XSS vulnerability.