-echo "warning: different versions of wc put differing amounts of whitespace" >&2
-echo "warning: before their output. Please do not consider this an error." >&2
+echo "warning: please do not consider output differing only in the amount of" >&2
+echo "warning: white space to be an error." >&2
${THIS_SH} ./read.tests > /tmp/xx 2>&1
diff /tmp/xx read.right && rm -f /tmp/xx