numeric.c: Change formal parameter to be const

as embed.fnc says it should be

diff --git a/numeric.c b/numeric.c
index 7106530..9ccb808 100644 (file)
--- a/numeric.c
+++ b/numeric.c
@@ -1402,7 +1402,7 @@ Perl_my_atof2(pTHX_ const char* orig, NV* value)
 }
 
 char*
-Perl_my_atof3(pTHX_ const char* orig, NV* value, STRLEN len)
+Perl_my_atof3(pTHX_ const char* orig, NV* value, const STRLEN len)
 {
     const char* s = orig;
     NV result[3] = {0.0, 0.0, 0.0};