Changes

Update checkBudget.py

Minor edit to ensure the nightly budget test works correctly.  Without the "?", the re.match function is "greedy", meaning it looks for all instances of the underscore character "_".  This is problematic for the "wp3_pr_turb" budget term for the wp3 budget.  Adding the "?" ensures that it will only search up to the first instance of the underscore, as intended.  I tested this and the budgets now balance successfully.