http://www.midnight-commander.org/ticket/1452
http://bugs.gentoo.org/show_bug.cgi?id=219412

Patch by Ian Abbott

diff -ur mc-4.7.0-pre1.orig/misc/mc.ext.in mc-4.7.0-pre1/misc/mc.ext.in
--- mc-4.7.0-pre1.orig/misc/mc.ext.in	2009-06-23 21:55:11.000000000 +0300
+++ mc-4.7.0-pre1/misc/mc.ext.in	2009-08-03 13:59:39.000000000 +0300
@@ -115,7 +115,7 @@
 	# Open=%cd %p#utar
 	View=%view{ascii} bzip -dc %f 2>/dev/null | tar tvvf -
 
-regex/\.t(ar\.bz2|bz|b2)$
+regex/\.t(ar\.bz2|bz2?|b2)$
 	Open=%cd %p#utar
 	View=%view{ascii} bzip2 -dc %f 2>/dev/null | tar tvvf -