Use character class for sed expression instead of \s

Sed on Mac OS X doesn't handle \s in a sed expressions so use a more
portable character set expression instead.

Signed-off-by: Ben Walton <bdwalton@gmail.com>
Signed-off-by: Jeff King <peff@peff.net>

Author: bdwalton

t/t9401-git-cvsserver-crlf.sh

@@ -46,7 +46,7 @@ check_status_options() {
 	echo "Error from cvs status: $1 $2" >> "${WORKDIR}/marked.log"
 	return 1;
     fi
-    got="$(sed -n -e 's/^\s*Sticky Options:\s*//p' "${WORKDIR}/status.out")"
+    got="$(sed -n -e 's/^[ 	]*Sticky Options:[ 	]*//p' "${WORKDIR}/status.out")"
     expect="$3"
     if [ x"$expect" = x"" ] ; then
 	expect="(none)"