如何找到此处列出的getstring的输出:https://github.com/moodle/moodle/blob/master/enrol/instances.php

I'm currently working on Moodle to change the spelling of enrol to enroll. I've completed almost every single screen except two places. Here is the code Github. To dig more, I need to know how do I find where to find the output of line 47 and what is the output? I have very little knowledge on coding, please excuse if the question is not clear

get_string(STRING_NAME, COMPONENT) takes english strings from /lang/en/COMPONENT.php

In your example, you would find the output for get_string('enrolmentinstances', 'enrol') in /lang/en/enrol.php (see https://github.com/moodle/moodle/blob/master/lang/en/enrol.php#L60 - $string['enrolmentinstances'] = 'Enrolment methods';)