[lldb] [llvm] [lldb] Refactor string manipulation in Debugger.cpp (#91209) (PR #91880)

[Youngsuk Kim via llvm-commits]

JOE1994 wrote:

> We usually don't grant exclusive rights to work on an issue in the project, since individual priorities may always change and people might loose interest in an issue. Typically this kind of conflict doesn't happen very often either. 

I understand that, but just for "good first issue"s,
I think it's desirable to allow 1 week to the person (likely a newcomer to the project) who first requested to be assigned to it
(the 1st step in the "good first issue" instructions also suggests this).

The user who initially asked to be assigned to the linked issue doesn't have "assign" access, and was likely waiting to get assigned. Assigning the issue to another user without any explanation or ping can be emotionally frustrating to the new user.

I've seen a similar conflict around a "good first issue" get heated in (`#84207`).

https://github.com/llvm/llvm-project/pull/91880