describe: when failing, tell the user about options that work

diff --git a/t/t2201-add-update-typechange.sh b/t/t2201-add-update-typechange.sh
index d24c7d9e5fce0e9c0f8ef5576dab86ffdbc11331..2e8f70245204bd4dc78e67f227e86838e1cdad5b 100755 (executable)
--- a/t/t2201-add-update-typechange.sh
+++ b/t/t2201-add-update-typechange.sh
@@ -11,7 +11,13 @@ test_expect_success setup '
        _empty=$(git hash-object --stdin <xyzzy) &&
        >yomin &&
        >caskly &&
-       ln -s frotz nitfol &&
+       if test_have_prereq SYMLINKS; then
+               ln -s frotz nitfol &&
+               T_letter=T
+       else
+               printf %s frotz > nitfol &&
+               T_letter=M
+       fi &&
        mkdir rezrov &&
        >rezrov/bozbar &&
        git add caskly xyzzy yomin nitfol rezrov/bozbar &&
@@ -29,7 +35,11 @@ test_expect_success modify '
        >nitfol &&
        # rezrov/bozbar disappears
        rm -fr rezrov &&
-       ln -s xyzzy rezrov &&
+       if test_have_prereq SYMLINKS; then
+               ln -s xyzzy rezrov
+       else
+               printf %s xyzzy > rezrov
+       fi &&
        # xyzzy disappears (not a submodule)
        mkdir xyzzy &&
        echo gnusto >xyzzy/bozbar &&
@@ -71,7 +81,7 @@ test_expect_success modify '
                                s/blob/000000/
                        }
                        /       nitfol/{
-                               s/      nitfol/ $_z40 T&/
+                               s/      nitfol/ $_z40 $T_letter&/
                                s/blob/100644/
                        }
                        /       rezrov.bozbar/{