reproducible_debstrap: Use 'eatmydata' for 'debootstrap'

On a CI system calling 'sync' influences the other processes that are
running on the shared host. 'debootstrap' calls 'sync' in its second
stage.
See also #1092641

Signed-off-by: Holger Levsen <holger@layer-acht.org>

bin/reproducible_debstrap.sh

@@ -70,14 +70,14 @@ for LOOP in "first" "second" ; do
 		first)	SUBDIR=b1
 			case $TOOL in
 				mmdebstrap)	REALTOOL="mmdebstrap -v" ;;
-				debootstrap)	REALTOOL="debootstrap --verbose" ;;
+				debootstrap)	REALTOOL="eatmydata debootstrap --verbose" ;;
 				cdebootstrap)	REALTOOL="cdebootstrap --verbose" ;;
 			esac
 			;;
 		second)	SUBDIR=b2
 			case $TOOL in
 				mmdebstrap)	REALTOOL=$TOOL ;;
-				debootstrap)	REALTOOL=$TOOL ;;
+				debootstrap)	REALTOOL="eatmydata $TOOL" ;;
 				cdebootstrap)	REALTOOL=cdebootstrap-static ;;
 			esac
 			;;