Add generic 'strbuf_readlink()' helper function

diff --git a/t/t2102-update-index-symlinks.sh b/t/t2102-update-index-symlinks.sh
index f195aefe3a207fa5bac447b59f16423da25abc21..1ed44ee503f9ecfb5222a9bce3f42ff2aa8127bc 100755 (executable)
--- a/t/t2102-update-index-symlinks.sh
+++ b/t/t2102-update-index-symlinks.sh
@@ -13,12 +13,12 @@ even if a plain file is in the working tree if core.symlinks is false.'
 test_expect_success \
 'preparation' '
 git config core.symlinks false &&
-l=$(echo -n file | git hash-object -t blob -w --stdin) &&
+l=$(printf file | git hash-object -t blob -w --stdin) &&
 echo "120000 $l        symlink" | git update-index --index-info'
 
 test_expect_success \
 'modify the symbolic link' '
-echo -n new-file > symlink &&
+printf new-file > symlink &&
 git update-index symlink'
 
 test_expect_success \