bug#72138: 30.0.50; [PATCH] Fix ring size in comint-read-input-ring

[Liu Hui]

Hi,

When comint-read-input-ring reads history to the ring, the global
value of comint-input-ring-size (i.e. 500) is used regardless of the
local value due to the use of temp buffer. For example:

1. HISTSIZE=10 emacs -Q
2. M-x shell

The buffer-local value of comint-input-ring-size is correctly set to
10, but C-c C-l shows 500 commands.

The attached patch fixes the problem that comint-read-input-ring
ignores the buffer-local comint-input-ring-size. Thanks.

0001-lisp-comint.el-comint-read-input-ring-Fix-ring-size.patch
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