commit https://github.com/vim/vim/commit/31f19ce0a052f7c76d44a9a190e468c79cf5d56d Author: Bram Moolenaar <Bram@vim.org> Date: Sun Jan 8 14:14:43 2017 +0100 patch 8.0.0154: system() test fails on OS/X Problem: system() test fails on OS/X. Solution: Deal with leading spaces.

TYPEMAP
VIWIN	T_VIOBJNOMUNGE
VIBUF	T_VIOBJNOMUNGE

INPUT
T_VIOBJNOMUNGE
	if (sv_isa($arg, \"${ntype}\")) {
	    IV tmp = SvIV((SV*)SvRV($arg));
	    $var = INT2PTR($type, tmp);
	    if (!tmp)
		croak(\"$ntype no longer exists\");
	}
	else
	    croak(\"$var is not of type ${ntype}\")