+20230701
+ + fix mandoc warnings about unnecessary markup.
+ + improve parameter check in tparm_setup()
+
+20230625
+ + adjust man/make_sed.sh to work with dates as the third field of TH.
+ + fixes for out-of-memory condition (report by "eaglegai").
+
+20230624
+ + fixes for out-of-memory condition (report by "eaglegai").
+
+20230617
+ + markup manpages with revision information (prompted by discussion
+ with Bjarni Ingi Gislason).
+