Remove accidental stray semicolon

contrib/verify-commits/verify-commits.sh

@@ -39,7 +39,7 @@ PREV_COMMIT=""
 while true; do
 	if [ "$CURRENT_COMMIT" = $VERIFIED_ROOT ]; then
 		echo "There is a valid path from "$CURRENT_COMMIT" to $VERIFIED_ROOT where all commits are signed!"
-		exit 0;
+		exit 0
 	fi
 
 	if [ "$CURRENT_COMMIT" = $VERIFIED_SHA512_ROOT ]; then