Adding upstream version 5.2.37.

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

tests/array20.sub

@@ -0,0 +1,47 @@
+#   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/>.
+#
+# tests to make sure that $* and ${array[*]} expand consistently in `list'
+# and `scalar' contexts
+
+arr=(a b c)
+IFS=+
+
+# these two should both expand to `+' separated strings
+a=${arr[*]} ; echo "$a"
+b=${arr[*]/a/x}; echo "$b"
+
+set -- a b c
+
+# these two should both expand to `+' separated strings
+a=${*} ; echo "$a"
+b=${*/a/x}; echo "$b"
+
+# these two should both expand to `+' separated strings and it should handle
+# characters in IFS as chars in the string
+unset a b
+
+set -- 'a+b' 'c+d' 'e+f'
+a=${*} ; recho "$a"
+b=${*/a/x}; recho "$b"
+
+# now let's make sure that @ always uses space separators even in contexts
+# where we don't do word splitting
+set -- a b c
+a=${@} ; echo "$a"
+b=${@/a/x}; echo "$b"
+
+unset a b
+
+a=${arr[@]} ; echo "$a"
+b=${arr[@]/a/x}; echo "$b"