-the lock is released; see further
-.IR flock (2).
-.PP
-A close of all of a process's descriptors is automatic on
-.IR exit ,
-but since
-there is a limit on the number of active descriptors per process,
-.I close
-is necessary for programs that deal with many descriptors.
-.PP
+the lock is released (see further
+.Xr flock 2 ) .
+.Pp
+When a process exits,
+all associated file descriptors are freed, but since there is
+a limit on active descriptors per processes, the
+.Fn close
+function call
+is useful when a large quanitity of file descriptors are being handled.
+.Pp