Adding upstream version 5.2.37.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

tests/globstar3.sub

@@ -0,0 +1,37 @@
+#   This program is free software: you can redistribute it and/or modify
+#   it under the terms of the GNU General Public License as published by
+#   the Free Software Foundation, either version 3 of the License, or
+#   (at your option) any later version.
+#
+#   This program is distributed in the hope that it will be useful,
+#   but WITHOUT ANY WARRANTY; without even the implied warranty of
+#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#   GNU General Public License for more details.
+#
+#   You should have received a copy of the GNU General Public License
+#   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#
+olddir=$PWD
+: ${TMPDIR:=/var/tmp}
+
+SCRATCH=${TMPDIR}/scratch-$$
+rm -rf $SCRATCH
+mkdir $SCRATCH || exit 1
+
+cd $SCRATCH
+
+mkdir a b
+touch a/aa a/ab
+touch b/bb b/bc
+
+ln -s a c
+
+shopt -s globstar
+
+echo **
+echo **/
+
+echo **/*b
+
+cd "$olddir"
+rm -rf $SCRATCH