Adding upstream version 5.2.37.

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

examples/functions/exitstat

@@ -0,0 +1,22 @@
+# Contributed by Noah Friedman and Roland McGrath.
+
+# To be run by the PROMPT_COMMAND variable, so that one can see what
+# the exit status of processes are.
+
+function check_exit_status ()
+{
+ local status="$?"
+ local signal=""
+
+    if [ ${status} -ne 0 ] && [ ${status} != 128 ]; then
+       # If process exited by a signal, determine name of signal.
+       if [ ${status} -gt 128 ]; then
+          signal="$(builtin kill -l $((${status} - 128)) 2>/dev/null)"
+	  if [ "$signal" ]; then signal="($signal)"; fi
+       fi
+       echo "[Exit ${status} ${signal}]" 1>&2
+    fi
+    return 0
+}
+
+PROMPT_COMMAND=check_exit_status