patch 8.2.0491: cannot recognize a <script> mapping using maparg()
Problem: Cannot recognize a <script> mapping using maparg().
Solution: Add the "script" key. (closes #5873)
diff --git a/runtime/doc/eval.txt b/runtime/doc/eval.txt
index 45ef83a..74c3d1c 100644
--- a/runtime/doc/eval.txt
+++ b/runtime/doc/eval.txt
@@ -6824,6 +6824,7 @@
"rhs" The {rhs} of the mapping as typed.
"silent" 1 for a |:map-silent| mapping, else 0.
"noremap" 1 if the {rhs} of the mapping is not remappable.
+ "script" 1 if mapping was defined with <script>.
"expr" 1 for an expression mapping (|:map-<expr>|).
"buffer" 1 for a buffer local mapping (|:map-local|).
"mode" Modes for which the mapping is defined. In