mingw: declare main()'s argv as const
In
84d32bf (sparse: Fix mingw_main() argument number/type errors,
2013-04-27), we addressed problems identified by the 'sparse' tool where
argv was declared inconsistently. The way we addressed it was by casting
from the non-const version to the const-version.
This patch is long overdue, fixing compat/mingw.h's declaration to
make the "argv" parameter const. This also allows us to lose the
"const" trickery introduced earlier to common-main.c:main().
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>