hush_test: filter test output to avoid C lib differences

The getopt function in some C libraries wraps the option in single quotes
while others do not.  Avoid the issue by running sed on the output and
strip all quotes.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>

shell/hush_test/run-all

@@ -52,6 +52,10 @@ do_test()
 #	echo Running test: "$x"
 	(
 	    "$THIS_SH" "./$x" >"$name.xx" 2>&1
+	    # filter C library differences
+	    sed -i \
+		-e "/: invalid option /s:'::g" \
+		"$name.xx"
 	    test $? -eq 77 && rm -f "../$1-$x.fail" && exit 77
 	    diff -u "$name.xx" "$name.right" >"../$1-$x.fail" && rm -f "$name.xx" "../$1-$x.fail"
 	)