Kill execfile(), use exec() instead
diff --git a/Doc/lib/libdoctest.tex b/Doc/lib/libdoctest.tex
index 5e28c2a..9143b84 100644
--- a/Doc/lib/libdoctest.tex
+++ b/Doc/lib/libdoctest.tex
@@ -1828,7 +1828,7 @@
via \function{\refmodule{pdb}.post_mortem()}, passing the traceback object
from the unhandled exception. If \var{pm} is not specified, or is false,
the script is run under the debugger from the start, via passing an
- appropriate \function{execfile()} call to \function{\refmodule{pdb}.run()}.
+ appropriate \function{exec()} call to \function{\refmodule{pdb}.run()}.
\versionadded{2.3}