Switch from SCCS to git.

Remove the SCCS keyword '%W%' from all files.
Mostly this just remove comments.
Remove trailing white space, too.
* Makefile (TZCODE_VERSION): New macro.
(version.h): New rule.
(tzselect): Interpolate TZCODE_VERSION.
(clean): Remove version.h.
(zdump.o, zic.o): Depend on version.h.
* asctime.c, date.c, difftime.c, ialloc.c, localtime.c, scheck.c:
* strftime.c, zdump.c, zic.c: Remove elsieid.
* private.h: Remove privatehid.
* tzfile.h: Remove tzfilehid.
* tzselect.h (TZCODE_VERSION): Rename from VERSION.
* zdump.c, zic.c: Include "version.h",
and use TZCODE_VERSION instead of elsieid.

tzselect.ksh

@@ -1,6 +1,6 @@
 #! /bin/ksh
 
-VERSION='%W%'
+TZCODE_VERSION=see_Makefile
 
 # Ask the user about the time zone, and output the resulting TZ value to stdout.
 # Interact with the user via stderr and stdin.
@@ -55,7 +55,7 @@ EOF
     exit 0
 elif [ "$1" = "--version" ]; then
     cat <<EOF
-tzselect $VERSION
+tzselect $TZCODE_VERSION
 EOF
     exit 0
 fi