+files listed in the CVSIGNORE environment variable (all cvsignore names
+are delimited by whitespace).
+
+Note that these cvs-exclude rules are inserted into the the user's list
+of excludes at the point the -C/--cvs-excludes option is mentioned, so
+any other include/exclude rules that precede the option override these
+rules, and any options that are specified afterwards are overridden by
+these rules.