pre-push.sample: Write error message to stderr

githooks(5) suggests:

  Information about why the push is rejected may be sent to the user
  by writing to standard error.

So follow that advice in the sample.

Signed-off-by: W. Trevor King <wking@tremily.us>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/templates/hooks--pre-push.sample b/templates/hooks--pre-push.sample
index 1f3bceb..69e3c67 100755 (executable)
--- a/templates/hooks--pre-push.sample
+++ b/templates/hooks--pre-push.sample
@@ -45,7 +45,7 @@ do
                commit=`git rev-list -n 1 --grep '^WIP' "$range"`
                if [ -n "$commit" ]
                then
-                       echo "Found WIP commit in $local_ref, not pushing"
+                       echo >&2 "Found WIP commit in $local_ref, not pushing"
                        exit 1
                fi
        fi