Of the airline interviews I have attended, 2x UK major, 1x Foreign flag carrier and have got jobs with 2/3.
The logbook every time was flicked through casually with the occasional 'oooh so you went there.' My handwriting is also shocking, like a ten year old scrawled it. I have never been to an airline interview with a logbook that included my PPL days, when I changed to my CPL training I purchased a new logbook with the required columns etc.
Also I partial passed my PPL first time, I think I failed on PFLs or something. Nearly gave up after that. I have achieved first time passes on CPL/ME/IR/FIC and A320 TR and had a successful career thus far. Don't sweat a PPL mess up, honestly and as an ex PPL instructor, many instructors are utter ****e.
Regards,
Tom.