Bug#644719: debootstrap: Weak error message at decompression failure

[Mats Erik Andersson <mats.andersson@gisladisker.se>]

Package: debootstrap
Version: 1.0.37
Severity: wishlist
Tags: patch

We have seen two grave bugs #633782 and #643950 that probably
would have benefitted from a slightly more talkative message,
directly pointing to the failing package.

Best regards,
  Mats Erik Andersson, DM


diff --git a/functions b/functions
index 44a071d..c3a6048 100644
--- a/functions
+++ b/functions
@@ -819,6 +819,7 @@ extract_ar_deb_data () {
 		ar -p "$pkg" "$tarball" | $cat_cmd | tar -xf -
 	else
 		error 1 UNPACKCMDUNVL "The $cat_cmd command is not available on the system"
+		error 1 UNPACKCMDUNVL "The error was caused by $pkg"
 	fi
 }