Minor tweak.

From-SVN: r17288

gcc/gcc.1

@@ -20,7 +20,7 @@
 .if n .sp
 .if t .sp 0.4
 ..
-.Id $Id: gcc.1,v 1.2 1997/12/05 22:12:45 law Exp $
+.Id $Id: gcc.1,v 1.9 1998/12/16 20:55:57 law Exp $
 .TH GCC 1 "\*(Dt" "GNU Tools" "GNU Tools"
 .SH NAME
 gcc, g++ \- GNU project C and C++ Compiler (egcs-1.0)
@@ -262,6 +262,7 @@ in the following sections.
 \-funroll\-loops
 \-O
 \-O2
+\-O3
 .TP
 .B Preprocessor Options
 .RI \-A assertion