Merge pull request #2127 from zowe/fix/git-hook-worktrees

[v2] Fix pre-commit script to support Git worktrees

.husky/commit-msg

@@ -2,7 +2,7 @@
 . "$(dirname "$0")/_/husky.sh"
 
 # If not a merge commit, require commit to be signed off
-if [ ! -e .git/MERGE_MSG ] && ! grep -q "^Signed-off-by: " "$1"; then
+if [ ! -e $(git rev-parse --git-dir)/MERGE_MSG ] && ! grep -q "^Signed-off-by: " "$1"; then
   echo >&2 "Commit message must be signed off with your user name and email."
   echo >&2 "To sign off your commit, add the -s flag to the git commit command."
   exit 1