Avoid loading the entire log files into memory

[ThibFrgsGmz]

Originating Project/Creator
Affected Component
Affected Architectures(s)
Related Issue(s)
Has Unit Tests (y/n)	n
Builds Without Errors (y/n)	Let CI run
Unit Tests Pass (y/n)	Let CI run
Documentation Included (y/n)	n

---

Change Description

This PR aims to use the built-in file iterator rather than calling readlines() to read the log files.

PS: I've fixed some other small issues that I felt didn't deserve to be put in a dedicated PR.

Rationale

It is preferable to do it this way because the file object returned by Python when opening a file is a lazy iterator over the lines in that file.

This means that it is not necessary to use readlines() to loop through the file. Using built-in iteration is shorter and does not load the entire file into memory with a list object, as readlines() does, which can be more efficient.

Testing/Review Recommendations

Ref1
Ref2

Future Work

None