RFR: 8262491: AArch64: CPU description should contain compatible board list [v6]

[Andrew Haley]

On Wed, 3 Mar 2021 14:05:02 GMT, Yasumasa Suenaga <ysuenaga at openjdk.org> wrote:

> So I set `\0` to the tail of `buf` at L178.

Which you then overwrite on Line 183. You really do need to move Line 174 to the end.
I ran a test with the read fulling the whole buffer.

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PR: https://git.openjdk.java.net/jdk/pull/2759