- added more description to "--map_path"

deep_fixitycheck.pl

@@ -442,7 +442,12 @@ This help.
 If the F</permanent> of remote Rosetta system is mappd locally to anothermountpoint, this parameter is used to map the
 original filename within rosetta to the locally mounted one.
 
-Example: F</permanent/> is mounted to F</home/foo/permanent>, then the B<--map_path> is F</home/foo/>
+Example1: F</permanent/> is mounted to F</home/foo/permanent>, then the B<--map_path> is F</home/foo/>
+
+Example2: Your IE-files uses /permanent-rosetta/normal/2019/.., and you want only mount the 2019-directory under F</mnt/foo>, you should
+make mountpoint F</mnt/foo/permanent-rosetta/normal/2019/> and use the B<--map_path> F</mnt/foo/>.
+
+Hint: check your report message and/or check open file paths uing C<lsof -p $PERL_PID>.
 
 =item B<--search_dir>