Minor markup nit.
diff --git a/Doc/lib/libposixfile.tex b/Doc/lib/libposixfile.tex
index f3c5d98..570a79b 100644
--- a/Doc/lib/libposixfile.tex
+++ b/Doc/lib/libposixfile.tex
@@ -144,7 +144,7 @@
 
 Note:
 
-(1) The \code{!} and \code{=} modifiers are mutually exclusive.
+(1) The \samp{!} and \samp{=} modifiers are mutually exclusive.
 
 (2) This string represents the flags after they may have been altered
 by the same call.