[PATCH] ls.tests: replace printf with $ECHO -ne

testsuite/ls.tests uses printf to produce a filename, but uses
\xNN escape sequence.  Dash (debian default) has printf buult-in,
but it does not understand \xNN, - it produces literal \xNN
instead of a single-byte corresponding to the value NN.
So the test fails.

Replace printf with $ECHO -ne - this one is used elsewhere
for similar purpose.

Signed-off-by: Michael Tokarev <[email protected]>

diff --git a/testsuite/ls.tests b/testsuite/ls.tests
--- a/testsuite/ls.tests
+++ b/testsuite/ls.tests
@@ -266,3 +266,3 @@ rm -rf ls.testdir 2>/dev/null
 mkdir ls.testdir || exit 1
-touch "`printf "ls.testdir/\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f\x10\x11\x12\x13\x14\x15\x16\x17\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f_\x7f\x80\xfe\xff_\x22_\x27_\x5c"`"
+touch "`$ECHO -ne "ls.testdir/\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f\x10\x11\x12\x13\x14\x15\x16\x17\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f_\x7f\x80\xfe\xff_\x22_\x27_\x5c"`"