filter-branch: assume HEAD if no revision supplied

diff --git a/test-sha1.sh b/test-sha1.sh
index 640856af5a6712a05b2530ad0951d84e631d0ec1..bf526c8f5e8649590da1bfd424e11a78c5621f6f 100755 (executable)
--- a/test-sha1.sh
+++ b/test-sha1.sh
@@ -10,7 +10,7 @@ do
                {
                        test -z "$pfx" || echo "$pfx"
                        dd if=/dev/zero bs=1048576 count=$cnt 2>/dev/null |
-                       tr '[\0]' '[g]'
+                       tr '\000' 'g'
                } | ./test-sha1 $cnt
        `
        if test "$expect" = "$actual"
@@ -55,7 +55,7 @@ do
                {
                        test -z "$pfx" || echo "$pfx"
                        dd if=/dev/zero bs=1048576 count=$cnt 2>/dev/null |
-                       tr '[\0]' '[g]'
+                       tr '\000' 'g'
                } | sha1sum |
                sed -e 's/ .*//'
        `