Remove "b" flag for sv_utf8_upgrade_nomg in embed.fnc

This is only a macro, without a Perl_ implementation.
Hopefully this fixes the Win32 build.

1 files changed, 1 insertions, 1 deletions

diff --git a/proto.h b/proto.h
index 06e305b5b9..62ddce4ff0 100644
--- a/proto.h
+++ b/proto.h
@@ -3969,7 +3969,7 @@ PERL_CALLCONV void	Perl_reginitcolors(pTHX);
 #define PERL_ARGS_ASSERT_SV_UTF8_UPGRADE	\
 	assert(sv)
 
-/* PERL_CALLCONV STRLEN	Perl_sv_utf8_upgrade_nomg(pTHX_ SV *sv)
+/* PERL_CALLCONV STRLEN	sv_utf8_upgrade_nomg(pTHX_ SV *sv)
 			__attribute__nonnull__(pTHX_1); */
 #define PERL_ARGS_ASSERT_SV_UTF8_UPGRADE_NOMG	\
 	assert(sv)