blkid: Add new option -L which pretty-prints the device list

Also accessed via -o list, this new output format is much more
user-friendly and lists whether or not a particular device is mounted.

Addresses-Debian-Bug #490527

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
diff --git a/configure b/configure
index 39d1ca8..0b7a05e 100755
--- a/configure
+++ b/configure
@@ -11820,7 +11820,8 @@
 
 
 
-for ac_header in dirent.h errno.h getopt.h malloc.h mntent.h paths.h setjmp.h signal.h stdarg.h stdint.h stdlib.h termios.h unistd.h utime.h linux/fd.h linux/major.h net/if_dl.h netinet/in.h sys/disklabel.h sys/ioctl.h sys/mkdev.h sys/mman.h sys/prctl.h sys/queue.h sys/resource.h sys/select.h sys/socket.h sys/sockio.h sys/stat.h sys/syscall.h sys/sysmacros.h sys/time.h sys/types.h sys/un.h sys/wait.h
+
+for ac_header in dirent.h errno.h getopt.h malloc.h mntent.h paths.h setjmp.h signal.h stdarg.h stdint.h stdlib.h termios.h termio.h unistd.h utime.h linux/fd.h linux/major.h net/if_dl.h netinet/in.h sys/disklabel.h sys/ioctl.h sys/mkdev.h sys/mman.h sys/prctl.h sys/queue.h sys/resource.h sys/select.h sys/socket.h sys/sockio.h sys/stat.h sys/syscall.h sys/sysmacros.h sys/time.h sys/types.h sys/un.h sys/wait.h
 do
 as_ac_Header=`echo "ac_cv_header_$ac_header" | $as_tr_sh`
 if { as_var=$as_ac_Header; eval "test \"\${$as_var+set}\" = set"; }; then