bin/check-blkdev-size: Don't print the full path in witter lines.

diff --git a/bin/check-blkdev-size b/bin/check-blkdev-size
index 0f68a53a861a19799851d12ac9f829328cc9387b..0bb7d6624363eb1bcafa094b48ddb194aa59d155 100755 (executable)
--- a/bin/check-blkdev-size
+++ b/bin/check-blkdev-size
@@ -1,8 +1,9 @@
 #! /bin/bash
 
 set -e -o pipefail
+prog=${0##*/}
 
-case $# in 1) ;; *) echo >&2 "usage: $0 DEV"; exit 127 ;; esac
+case $# in 1) ;; *) echo >&2 "usage: $prog DEV"; exit 127 ;; esac
 dev=$1
 
 typeset -i sz; sz=$(blockdev --getsize64 "$dev")
@@ -19,17 +20,17 @@ for i in 2 3 5 7; do
     if (( bsz >= 65536 )); then break 2; fi
   done
 done
-echo >&2 "$0: using $nb blocks of size $bsz"
+echo >&2 "$prog: using $nb blocks of size $bsz"
 
 ## Write the initial stream.
-echo >&2 "$0: writing pseudorandom pattern..."
+echo >&2 "$prog: writing pseudorandom pattern..."
 rspit salsa20/8 -H$k -z$sz -pT | \
   dd status=none iflag=fullblock oflag=direct bs=$bsz count=$nb of="$dev"
-echo >&2 "$0: writing pseudorandom pattern... done"
+echo >&2 "$prog: writing pseudorandom pattern... done"
 
 ## Read the stream back, and check against the reference.
-echo >&2 "$0: checking pseudorandom pattern..."
+echo >&2 "$prog: checking pseudorandom pattern..."
 cmp <(rspit salsa20/8 -H$k -z$sz -pT) \
     <(dd status=none iflag=direct bs=$bsz count=$nb if="$dev")
-echo >&2 "$0: checking pseudorandom pattern... done"
-echo >&2 "$0: all ok"
+echo >&2 "$prog: checking pseudorandom pattern... done"
+echo >&2 "$prog: all ok"