Log Message:
+ ensure that ${SCRIPT_NAME} contains full path of script (previously
  the leading "cgi-bin/" was stripped)
+ convert '-' to '_' in ${HTTP_xxx} environment variable names, and
  ensure that the names are NUL terminated
+ lookup addr, host (unless -n) and port for every request, not just
  cgi requests, and log the host & port in "got request ..." message
+ fix -n to work as documented; set it to *prevent* addr->name lookups
+ document -n is useful even without -c
+ don't deref NULL pointers in printf %s
+ be consistent about stripping leading `/' from command
+ clean up how "cgi-bin/" prefix is hardcoded in
+ fix -Wall compile issues
+ bump package revision