pragma.
Note that the C<a>, C<d>, C<l>, C<p>, and C<u> modifiers are special in
-that they can only be enabled, not disabled, and the C<d>, C<l>, and
+that they can only be enabled, not disabled, and the C<a>, C<d>, C<l>, and
C<u> modifiers are mutually exclusive: specifying one de-specifies the
others, and a maximum of one may appear in the construct. Thus, for
example, C<(?-p)>, C<(?-d:...)>, and C<(?dl:...)> will warn when