Fixed notfound_exit
input doing the exact opposite (Step as failed wrong value logic 路 Issue #6 路 bitrise-steplib/steps-change-value 路 GitHub). By default, it will now fail the step if the text that needs to be replaced cannot be found in the given file.
Thanks @BonnetM for submitting a fix (Flip inputIsFailIfOldValueNotFound logic by BonnetM 路 Pull Request #7 路 bitrise-steplib/steps-change-value 路 GitHub)!