debian: Create debian release tarball to obey new WIP naming convention

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
diff --git a/configure.in b/configure.in
index 9a43f99..c16893e 100644
--- a/configure.in
+++ b/configure.in
@@ -46,8 +46,7 @@
 
 case $E2FSPROGS_VERSION in
 *-WIP|pre-*)
-	pre_vers=`echo $base_ver 0.01 - p | dc`
-	E2FSPROGS_PKGVER="$pre_vers+${base_ver}_WIP_$date_spec"
+	E2FSPROGS_PKGVER="$base_ver~WIP-$E2FSPROGS_YEAR-$MONTH_NUM-$E2FSPROGS_DAY"
 	;;
 *)
 	E2FSPROGS_PKGVER="$base_ver"