llvm-ar `N` argument docs: final sentence is incomplete

[aSemy]

The last sentence of the docs for llvm-ar N starts, but doesn't finish.

If *count* is not supplied, the operation fails.*count* cannot be

https://github.com/llvm/llvm-project/blob/llvmorg-21.1.2/llvm/docs/CommandGuide/llvm-ar.rst?plain=1#L184-L191

Additionally, on the website "count" is not rendered with italics:

[llvmbot]

@llvm/issue-subscribers-tools-llvm-ar-llvm-ranlib

Author: Adam (aSemy)

The last sentence of the docs for llvm-ar `N` starts, but doesn't finish.

> > If *count* is not supplied, the operation fails.*count* cannot be >

https://github.com/llvm/llvm-project/blob/llvmorg-21.1.2/llvm/docs/CommandGuide/llvm-ar.rst?plain=1#L184-L191

Additionally, on the website "count" is not rendered with italics:

<img width="441" height="43" alt="Image" src="https://github.com/user-attachments/assets/c17b9479-2338-4206-93b3-071fc308acd4" />

[jh7370]

Thanks for the report. There are two separate issues. The first is the missing space before *count*. The second is that during review, it looks like the last line of text for the option was accidentally deleted. See https://reviews.llvm.org/D68998 and https://reviews.llvm.org/D68998?id=225057 - the latter is the first diff, which includes the full sentence:
*count* cannot be consumed without :option:`N`.

This is a trivial fix. @aSemy, do you want to fix it?