Use test -t 1 instead of test -w in test-pick.

diff --git a/test/pick/test-pick b/test/pick/test-pick
index 07eff1f..e1434dc 100755 (executable)
--- a/test/pick/test-pick
+++ b/test/pick/test-pick
@@ -99,7 +99,7 @@ cat >"$expected" <<EOF
 EOF
 check "$expected" "$actual"
 
-if test -w /dev/tty  &&  (printf '' >/dev/tty) 2>/dev/null; then
+if test -t 1  &&  (printf '' >/dev/tty) 2>/dev/null; then
   # Produce no standard output if no messages match and standard
   # output is a tty.  To test that even when run with stdout
   # detached, write directly to /dev/tty.  Can't capture the