!fixup e2a3662 [doc/ref/chap-osh-assign] Mention assoc=(k v ...) with strict_array

Author: akinomyoga

doc/ref/chap-osh-assign.md

@@ -251,9 +251,9 @@ item in order.  An item in the initializer list must be in the forms
     a+=([k]=5)                  # This overwrites an element in the original
                                 # array. The result is ([a]=3 [b]=4 [k]=5).
 
-As a special rule, when the first initializer form does not have `[<key>]=` or
-`[<key>]+=`, the initializer items are treated as a sequence of `key1 value1
-key2 value2 key3 value3 ...`.
+As a special rule, when the first initializer form does not have `[KEY]=` or
+`[KEY]+=`, the initializer items are treated as a sequence of `KEY1 VALUE1 KEY2
+VALUE2 KEY3 VALUE3 ...`.  OSH disables this feature when `strict_array` is set.
 
     declare -A a=(1 2 3 4)       # This creates a BashAssoc with two elements,
                                  # ([1]=2 [3]=4)