Added \indexsubitem definition; functions were previously indexed for the
wrong module.
diff --git a/Doc/libfnmatch.tex b/Doc/libfnmatch.tex
index 86c9073..8bce50a 100644
--- a/Doc/libfnmatch.tex
+++ b/Doc/libfnmatch.tex
@@ -17,6 +17,8 @@
 special to this module.  See module \code{glob} for pathname expansion
 (\code{glob} uses \code{fnmatch} to match filename segments).
 
+\renewcommand{\indexsubitem}{(in module fnmatch)}
+
 \begin{funcdesc}{fnmatch}{filename\, pattern}
 Test whether the \var{filename} string matches the \var{pattern}
 string, returning true or false.  If the operating system is