is secure, and exit successfully if it is (and unsuccessfully if it
isn't).
.TP
+.B "\-T, \-\-private-group"
+Accept directories which are accessible by the user's primary group
+.TP
.B "\-b, \-\-bourne"
Output an assignment using Bourne shell syntax. The default is to
examine the user's shell and decide which syntax to use based on that.