isc_file_template() allows the caller to specify the prefix unlike
isc_file_mktemplate().  The later is now written using isc_file_template().

                        rather than writing to a temporary file and
                        renaming.  This could lead to empty or partial
                        zone files being left around in certain error
                        conditions involving the initial transfer of a
                        slave zone, interfering with subsequent server
                        startup. [RT #282]

own CVS tree will help minimize CVS conflicts.  Maybe not.
Blame Graff for getting me to trim all trailing whitespace.

unsigned long long constant to work correctly on platforms that have
a 64 bit timeval.tv_sec and 32 bit ints.

	warning: integer overflow detected: op "<<"
unless the operand is unsigned/

why this is an ok thing to do.  shuts up the irix compiler.

and cast isc_time_nanoseconds to shut up the IRIX compiler.

source files.  We may want to generalize this as part of the libisc API,
but with a better name.

                        isc_file_fseek(), isc_file_fread(), isc_file_fwrite(),
                        isc_file_fflush(), isc_file_ffsync(), isc_file_remove()
                        to encapsulate nonportable usage of errno and fflush().

Cleanup of redundant/useless header file inclusion.

ISC style lint, primarily for function declarations and standalone
comments -- ie, those that appear on a line without any code, which
should be written as follows:
   /*
    * This is a comment.
    */

isc_file_openunique

                        isc_file_getmodtime, isc_mktemplate renamed to
                        isc_file_mktemplate and isc_ufile renamed to
                        isc_file_openunique.  By no means an exhaustive API,
                        it is just what's needed for now.