count is optional, so put square brackets around it.
+2006-01-30 Paul Eggert <eggert@cs.ucla.edu>
+
+ * coreutils.texi (tail invocation): In the obsolete usage, the
+ count is optional, so put square brackets around it.
+
2006-01-02 Paul Eggert <eggert@cs.ucla.edu>
* getdate.texi (General date syntax): Invalid dates are rejected.
@end table
For compatibility @command{tail} also supports an obsolete usage
-@samp{tail -@var{count}[bcl][f] [@var{file}]}, which is recognized
+@samp{tail -[@var{count}][bcl][f] [@var{file}]}, which is recognized
only if it does not conflict with the usage described
above. This obsolete form uses exactly one option and at most one
file. In the option, @var{count} is an optional decimal number optionally