Meaning of 一丁前にご指摘失礼しました


A young employee points out an error made by the boss in a blog post, the
following ensues:

> boss: なるほど、あとで直しとくわ  
>  employee: ありがとうございます。 **一丁前にご指摘失礼しましたー** 。

**QUESTION:** What does 一丁前 refer to in this dialog?

According to my dictionary, 一丁前 means "becoming an adult or full-fledged
member of society".  
Does the employee points out that himself has only recently become an adult,
and thus is not in a position to point out errors? Or does he points out that
he is not in a position to point out errors because the boss is a older than
himself?




> [一丁前]{いっちょ(う)まえ}にご指摘失礼しました。

I think it's like "Excuse me for pointing out (your error) like / as if I am a
full-fledged member/worker (of the company/society)."
≒「[一人前]{いちにんまえ}に/偉そうに指摘して、失礼しました。」




> [一丁前]{いっちょ(う)まえ}にご指摘失礼しました。

I think it's like "Excuse me for pointing out (your error) like / as if I am a
full-fledged member/worker (of the company/society)."
≒「[一人前]{いちにんまえ}に/偉そうに指摘して、失礼しました。」

