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-rw-r--r--Doc/lib/libfilecmp.tex1
1 files changed, 1 insertions, 0 deletions
diff --git a/Doc/lib/libfilecmp.tex b/Doc/lib/libfilecmp.tex
index c53fc33..6e474ae 100644
--- a/Doc/lib/libfilecmp.tex
+++ b/Doc/lib/libfilecmp.tex
@@ -41,6 +41,7 @@ compared. Files may be listed in \var{errors} because the user may
lack permission to read them or many other reasons, but always that
the comparison could not be done for some reason.
+The \var{common} parameter is a list of file names found in both directories.
The \var{shallow} and \var{use_statcache} parameters have the same
meanings and default values as for \function{filecmp.cmp()}.
\end{funcdesc}