gnucash stable: mingw32: Use msvcrt's _wsetlocale in set_platform_ctype_to_acp.

[John Ralls]

Updated	 via  https://github.com/Gnucash/gnucash/commit/6b69ea72 (commit)
	from  https://github.com/Gnucash/gnucash/commit/e27a3c62 (commit)



commit 6b69ea727868fa5b550e04167d0a3ab6d2759619
Author: John Ralls <jralls at ceridwen.us>
Date:   Wed Sep 16 17:57:17 2026 -0700

    mingw32: Use msvcrt's _wsetlocale in set_platform_ctype_to_acp.
    
    The setlocale we get is from libintl which doesn't do anything for
    locale "C".
    
    This commit should be reverted immediately after merging into future.
    
    Assisted-by: Claude Code Opus 5
    Signed-off: John Ralls <jralls at ceridwen.us>



Summary of changes:
 gnucash/gnucash-locale-windows.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)