patch 9.1.1224: cannot :put while keeping indent

Problem:  cannot :put while keeping indent (Peter Aronoff)
Solution: add the :iput ex command (64-bitman)

fixes: #16225
closes: #16886

Co-authored-by: zeertzjq <zeertzjq@outlook.com>
Co-authored-by: Hirohito Higashi <h.east.727@gmail.com>
Signed-off-by: 64-bitman <60551350+64-bitman@users.noreply.github.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/runtime/doc/version9.txt b/runtime/doc/version9.txt
index b27e124..3e5e681 100644
--- a/runtime/doc/version9.txt
+++ b/runtime/doc/version9.txt
@@ -1,4 +1,4 @@
-*version9.txt*  For Vim version 9.1.  Last change: 2025 Mar 15
+*version9.txt*  For Vim version 9.1.  Last change: 2025 Mar 18
 
 
 		  VIM REFERENCE MANUAL    by Bram Moolenaar
@@ -41704,6 +41704,10 @@
 Commands: ~
 
 |[r| and |]r|		to move the cursor to previous/next rare word
+
+Ex-Commands: ~
+
+|:iput|			like |:put| but adjust indent
 |:pbuffer|		Edit buffer [N] from the buffer list in the preview
 			window