Fix expect script in mkimage-arch

Docker-DCO-1.1-Signed-off-by: Zoltan Tombol <zoltan.tombol@gmail.com> (github: ztombol)

contrib/mkimage-arch.sh

@@ -21,17 +21,18 @@ chmod 755 $ROOTFS
 PKGIGNORE=linux,jfsutils,lvm2,cryptsetup,groff,man-db,man-pages,mdadm,pciutils,pcmciautils,reiserfsprogs,s-nail,xfsprogs
 
 expect <<EOF
+	set send_slow {1 .1}
+	proc send {ignore arg} {
+		sleep .1
+		exp_send -s -- \$arg
+	}
 	set timeout 60
-  set send_slow {1 1}
+
 	spawn pacstrap -C ./mkimage-arch-pacman.conf -c -d -G -i $ROOTFS base haveged --ignore $PKGIGNORE
 	expect {
-    "Install anyway?" { send n\r; exp_continue }
-    "(default=all)" { send \r; exp_continue }
-    "Proceed with installation?" { send "\r"; exp_continue }
-    "skip the above package" {send "y\r"; exp_continue }
-    "checking" { exp_continue }
-    "loading" { exp_continue }
-    "installing" { exp_continue }
+		-exact "anyway? \[Y/n\] " { send -- "n\r"; exp_continue }
+		-exact "(default=all): " { send -- "\r"; exp_continue }
+		-exact "installation? \[Y/n\]" { send -- "y\r"; exp_continue }
 	}
 EOF