reason this desperately confuses groff.
.bp
.\".nr * \n*-1
.\".ps \n[@ps]
+.\"
+.\" Note: In the original manual, the headers on the character-set table
+.\" were more or less centered. This should be achievable with a "c c c"
+.\" format line, but for some reason the attempt desperately confuses
+.\" groff in 2010.
+.\"
.ie '\*c'n' \{\
.\" CORRECTION: "exclusive or" was typoed as "exlusive or"
.TS
box;
-c c c
l l l.
Character Name Use (if any)
\&. spot identify 16-bit variable
.el \{\
.TS
box;
-c c c
l l l.
Character Name Use (if any)
\&. spot identify 16-bit variable