Add test cases that check utility syntax errors and redirection errors. For

special built-in utilities they must terminate the shell, for other
utilities only a error message shall be written.  We currently fail both
tests.

tools/regression/bin/sh/errors/option-error.0

@@ -0,0 +1,46 @@
+# $FreeBSD$
+IFS=,
+
+SPECIAL="break abc,\
+	continue abc,\
+	.,
+	exit abc,
+	export -x,
+	readonly -x,
+	return abc,
+	set -z,
+	shift abc,
+	trap -y,
+	unset -y"
+
+UTILS="alias -y,\
+	cat -z,\
+	cd abc def,\
+	command break abc,\
+	expr 1 +,\
+	fc -z,\
+	getopts,\
+	hash -z,\
+	jobs -z,\
+	printf,\
+	pwd abc,\
+	read,\
+	test abc =,\
+	ulimit -z,\
+	umask -z,\
+	unalias -z,\
+	wait abc"
+
+# Special built-in utilities must abort on an option or operand error.
+set -- ${SPECIAL}
+for cmd in "$@"
+do
+	sh -c "${cmd}; exit 0" 2>/dev/null && exit 1
+done
+
+# Other utilities must not abort.
+set -- ${UTILS}
+for cmd in "$@"
+do
+	sh -c "${cmd}; exit 0" 2>/dev/null || exit 1
+done

tools/regression/bin/sh/errors/redirection-error.0

@@ -0,0 +1,53 @@
+# $FreeBSD$
+IFS=,
+
+SPECIAL="break,\
+	:,\
+	continue,\
+	. /dev/null,
+	eval,
+	exec,
+	export -p,
+	readonly -p,
+	set,
+	shift,
+	times,
+	trap,
+	unset foo"
+
+UTILS="alias,\
+	bg,\
+	bind,\
+	cd,\
+	command echo,\
+	echo,\
+	false,\
+	fc -l,\
+	fg,\
+	getopts a -a,\
+	hash,\
+	jobs,\
+	printf a,\
+	pwd,\
+	read var < /dev/null,\
+	test,\
+	true,\
+	type ls,\
+	ulimit,\
+	umask,\
+	unalias -a,\
+	wait"
+
+# Special built-in utilities must abort on a redirection error.
+set -- ${SPECIAL}
+for cmd in "$@"
+do
+	sh -c "${cmd} > /; exit 0" 2>/dev/null && exit 1
+done
+
+# Other utilities must not abort.
+set -- ${UTILS}
+for cmd in "$@"
+do
+	sh -c "${cmd} > /; exit 0" 2>/dev/null || exit 1
+done