Paul Eggert 32aea018e7 Avoid trailing whitespace in config.h ...

Problem (and earlier patch) reported by Collin Funk in:
https://lists.gnu.org/archive/html/autoconf-patches/2025-10/msg00002.html
* NEWS: Mention this.
* lib/autoconf/status.m4 (_AC_OUTPUT_HEADERS_PREPARE):
Omit trailing white space from C macro definitions.
* tests/torture.at (No trailing white space in macro definitions):
New test.

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data

spelling fixes

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a68.at

maint: update all copyright dates via "make update-copyright"

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atlocal.in

maint: update all copyright dates via "make update-copyright"

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autoscan.at

maint: update all copyright dates via "make update-copyright"

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autotest.at

maint: update all copyright dates via "make update-copyright"

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base.at

maint: update all copyright dates via "make update-copyright"

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c.at

maint: update all copyright dates via "make update-copyright"

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compile.at

maint: update all copyright dates via "make update-copyright"

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erlang.at

maint: update all copyright dates via "make update-copyright"

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foreign.at

maint: update all copyright dates via "make update-copyright"

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fortran.at

maint: update all copyright dates via "make update-copyright"

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go.at

maint: update all copyright dates via "make update-copyright"

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local.at

maint: update all copyright dates via "make update-copyright"

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local.mk

maint: update all copyright dates via "make update-copyright"

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m4sh.at

maint: update all copyright dates via "make update-copyright"

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m4sugar.at

maint: update all copyright dates via "make update-copyright"

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mktests.pl

maint: update all copyright dates via "make update-copyright"

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semantics.at

maint: update all copyright dates via "make update-copyright"

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statesave.m4

maint: update all copyright dates via "make update-copyright"

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suite.at

maint: update all copyright dates via "make update-copyright"

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tools.at

maint: update all copyright dates via "make update-copyright"

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torture.at

Avoid trailing whitespace in config.h

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wrapper.as

maint: update all copyright dates via "make update-copyright"

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