+# groff-1.22.3 defects:
+# - .Pp before .Sh NAME causes a blank line before the header line
+# - .Ss before .Sh NAME puts the subsection header before the header line
+# - missing .Sh NAME causes loss of the header and footer lines
+# - .Sh DESCRIPTION Xo aborts the parser
+
+SKIP_GROFF = parbefore subbefore first empty