Updated options with missing cl switches

doc/options.rst

@@ -1,17 +1,23 @@
 ownCloud Client supports the following command line switches:
 
 ``--logwindow``
-        open a window to show log output at startup.
+        open a window to show log output.
 
-``--logfile`` `<file>`
-        write log output to a single file
+``--logfile`` `<filename>`
+        write log output to file <filename>.
 
-``--logdir`` `<dir>`
-        write log output to dir, one for each sync run.
+``--logdir`` `<name>`
+        write each sync log output in a new file in directory <name>
 
-``--flushlog``
+``--logexpire`` `<hours>`
+        removes logs older than <hours> hours. (to be used with --logdir)
+
+``--logflush``
         flush the log file after every write.
 
 ``--monoicons``
         Use black/white pictograms for systray.
 
+``--confdir`` `<dirname>`
+        Use the given configuration directory.
+