+PH/20 Added $auth1, $auth2, $auth3 to contain authentication data (as well as
+ $1, $2, $3) because the numerical variables can be reset during some
+ expansion items (e.g. "match"), thereby losing the authentication data.
+
+PH/21 Make -bV show the size of off_t variables so that the test suite can
+ decide whether to run tests for quotas > 2G.
+
+PH/22 Test the values given for quota, quota_filecount, quota_warn_threshold,
+ mailbox_size, and mailbox_filecount in the appendfile transport. If a
+ filecount value is greater than 2G or if a quota value is greater than 2G
+ on a system where the size of off_t is not greater than 4, a panic error
+ is given.
+
+PH/23 When a malformed item such as 1.2.3/24 appears in a host list, it can
+ never match. The debug and -bh output now contains an explicit error
+ message indicating a malformed IPv4 address or mask.
+
+PH/24 An host item such as 1.2.3.4/abc was being treated as the IP address
+ 1.2.3.4 without a mask. Now it is not recognized as an IP address, and
+ PH/23 above applies.
+
+PH/25 Do not write to syslog when running in the test harness. The only
+ occasion when this arises is a failure to open the main or panic logs
+ (for which there is an explicit test).
+