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pgsql: Fix minor portability issue in pg_resetwal.c.

From:	Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To:	pgsql-committers(at)lists(dot)postgresql(dot)org
Subject:	pgsql: Fix minor portability issue in pg_resetwal.c.
Date:	2025-12-09 00:06:52
Message-ID:	E1vSlFj-003W8t-1e@gemulon.postgresql.org
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Fix minor portability issue in pg_resetwal.c.

The argument of isspace() (like other <ctype.h> functions)
must be cast to unsigned char to ensure portable results.

Per NetBSD buildfarm members. Oversight in 636c1914b.

Branch
------
master

Modified Files
--------------
src/bin/pg_resetwal/pg_resetwal.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

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