fix lastpathelement win32 behaviour

tools/itscertgen/cshared/cstr.c

@@ -239,8 +239,10 @@ char * cstraload(char ** p, const pchar_t * path)
 const pchar_t * cstrlastpathelement(const pchar_t * str)
 {
 	const pchar_t * p = pchar_rchr(str, '/');
-	const pchar_t * p2 = pchar_rchr(str, '/');
+#ifdef WIN32
+	const pchar_t * p2 = pchar_rchr(str, '\\');
 	if(p<p2)p=p2;
+#endif
 	else if(p == NULL) p = str;
 	return p;
 }