Update xml/issue4483.xml

Author: Dani-Hub

xml/issue4483.xml

@@ -16,7 +16,7 @@
 with a multidimensional array or `span` of arrays is ill-formed due to the <i>Mandates</i> in
 <sref ref="meta.define.static"/> p8 that requires range value type to be structural.</p>
 
-<p>As a consequence, `constant_of` currently supports only single-dimensional array
+<p>As a consequence, `constant_of` currently supports only single-dimensional arrays
 (<tt>reflect_constant_array</tt> strips outermost extents), while multi-dimensional array are
 rejected.</p>