post-apply: allow working from elsewhere including secondary worktrees

diff --git a/post-applypatch b/post-applypatch
index 83db132a30fe4e5642dbb884db62633a8610e4f6..6f286cf5a1de52e43d56cb2f24218511076a8685 100755 (executable)
--- a/post-applypatch
+++ b/post-applypatch
@@ -1,6 +1,6 @@
 #!/bin/sh
 
-GIT_DIR=.git
+GIT_DIR=$(git rev-parse --git-dir)
 dotest="$GIT_DIR/rebase-apply"
 
 prec=4 &&