Setup worktree timestamp logic

Added logic to update the 'updated' timestamp whenever the worktree is
checked out or committed.  systrunk status now displays this timestamp.

1 files changed, 1 insertions, 0 deletions

diff --git a/checkout.sh b/checkout.sh
index d7208c9..e340706 100644
--- a/checkout.sh
+++ b/checkout.sh
@@ -72,4 +72,5 @@ function systr_checkout
 
     echo "Checking out files..."
     systr_rsync_normal "$path/revs/$commit/" .
+    date >.systr/updated
 }