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+* Handling time-stamps and date-stamps in file names
+
+Per default, date2name gets the modification time of matching files
+and directories and adds a datestamp in standard ISO 8601+ format
+YYYY-MM-DD (http://datestamp.org/index.shtml) at the beginning of
+the file- or directoryname.
+
+If an existing timestamp is found, its style will be converted to the
+selected ISO datestamp format but the numbers stays the same.
+Executed with an examplefilename "file" this results e.g. in
+"2008-12-31_file".
+
+Note: Other that defined in ISO 8601+ the delimiter between hours,
+minutes, and seconds is not a colon but a dot. Colons are causing
+several problems on different file systems and are there fore replaced
+with the (older) DIN 5008 version with dots.
+
+: Usage: 
+:          date2name [options] file ...
+
+Run "date2name --help" for usage hints
+
+: Options:
+:   -h, --help         show this help message and exit
+:   -d, --directories  modify only directory names
+:   -f, --files        modify only file names
+:   --compact          use compact datestamp             (YYYYMMDD)
+:   --month            use datestamp with year and month (YYYY-MM)
+:   --withtime         use datestamp including seconds   (YYYY-MM-DDThh.mm.ss)
+:   -m, --mtime        take modification time for datestamp [default]
+:   -c, --ctime        take creation time for datestamp
+:   -q, --quiet        do not output anything but just errors on console
+:   -v, --verbose      enable verbose mode
+:   --nocorrections    do not convert existing datestamps to new format
+:   -s, --dryrun       enable dryrun mode: just simulate what would happen, do
+:                      not modify files or directories
+:   --version          display version and exit