Format sources for better readability and editing.

Changed openreadclose.c, readclose.c and scan_ulong.c sources to
format it for easy reading and editing.
Fix dnscache bug of ignoring ../servers/mydomain.com configurations.

Updated roots.c to fix a bug which would cause it to incorrectly
read domain specific authoritative server configurations from
..servers/mydomain.com files. It was caused by incorrect
initialisation of couple of counter variables: j and serverslen.

Added new routines to display authoritative server configurations
read by dnscache and stored in main memory. When dnscache server is
invoked with -d4 option, it displays root server configurations.
  -> https://bugzilla.redhat.com/show_bug.cgi?id=913651