Quote bash variables (thanks @vzsigmond)

scripts/git-hooks/commit-msg

@@ -14,15 +14,15 @@ if git rev-parse -q --verify MERGE_HEAD >/dev/null 2>&1; then
 fi
 
 # Check if the commit message starts with the desired pattern
-if [[ $commit_message =~ $COMMIT_PATTERN ]]; then
+if [[ "$commit_message" =~ "$COMMIT_PATTERN" ]]; then
   exit 0
 fi
 
 # Get the current branch name
 branch_name=$(git rev-parse --abbrev-ref HEAD)
 
 # Try to extract the pattern from the branch name
-if [[ $branch_name =~ $BRANCH_PATTERN ]]; then
+if [[ "$branch_name" =~ "$BRANCH_PATTERN" ]]; then
   ticket_id="${BASH_REMATCH[1]}"
   # Prepend the ticket ID to the commit message
   echo "$ticket_id: $commit_message" > "$1"