[range.sized] Fix misapplication of P1724R0: "non-array object" ->

"program-defined".

Author: zygoloid

source/ranges.tex

@@ -897,7 +897,7 @@
 \remarks
 Pursuant to \ref{namespace.std},
 users may specialize \tcode{disable_sized_range}
-for cv-unqualified non-array object types.
+for cv-unqualified program-defined types.
 Such specializations shall
 be usable in constant expressions\iref{expr.const} and
 have type \tcode{const bool}.