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-rw-r--r--tmac/groff_ms.man15
1 files changed, 7 insertions, 8 deletions
diff --git a/tmac/groff_ms.man b/tmac/groff_ms.man
index 331c7cce..2a1a55db 100644
--- a/tmac/groff_ms.man
+++ b/tmac/groff_ms.man
@@ -1299,10 +1299,10 @@ rather than silently to ignore them.
.
.IP \(bu
Some Bell Labs localisms are not implemented by default.
-However, by giving the command-line option
-.B "-r\ bell=1"
-you can enable implementations of the archaic Bell Labs macros
-.BR SC ,
+However, if you call the otherwise undocumented
+.BR SC
+section-header macro, you will enable implementations of three other
+archaic Bell Labs macros:
.BR UC ,
.BR P1 ,
and
@@ -1315,10 +1315,9 @@ and (b)\~the
and
.B UC
macros both collide with different macros in the Berkeley version of
-.IR ms .
-The
-.B "-r\ bell=1"
-emulations are sufficient to give back the 1976 Kernighan\~& Cherry paper
+.IR ms .
+.sp
+These emulations are sufficient to give back the 1976 Kernighan\~& Cherry paper
.I "Typsetting Mathematics \(en User's Guide"
its section headings, and restore some text that had gone missing as
arguments of undefined macros.