Fix markup error.

diff --git a/Doc/lib/libtraceback.tex b/Doc/lib/libtraceback.tex
index a74613bbcf762b3c82c8d9add7d4519def5bca37..9778c83834262951444023a55984da8362307570 100644 (file)
--- a/Doc/lib/libtraceback.tex
+++ b/Doc/lib/libtraceback.tex
@@ -119,7 +119,7 @@ A shorthand for \code{format_list(extract_stack(\var{f}, \var{limit}))}.
 \begin{funcdesc}{tb_lineno}{tb}
 This function returns the current line number set in the traceback
 object.  This function was necessary because in versions of Python
-prior to 2.3 when the \programopt{O} flag was passed to Python the
+prior to 2.3 when the \programopt{-O} flag was passed to Python the
 \code{\var{tb}.tb_lineno} was not updated correctly.  This function
 has no use in versions past 2.3.
 \end{funcdesc}