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/src/ex_cmds.h b/src/ex_cmds.h
index d217cd9..0659f87 100644
--- a/src/ex_cmds.h
+++ b/src/ex_cmds.h
@@ -761,6 +761,9 @@
 EXCMD(CMD_interface,	"interface",	ex_class,
 	EX_EXTRA|EX_CMDWIN|EX_LOCK_OK|EX_WHOLE|EX_EXPORT,
 	ADDR_NONE),
+EXCMD(CMD_iput,		"iput",		ex_iput,
+	EX_RANGE|EX_WHOLEFOLD|EX_BANG|EX_REGSTR|EX_TRLBAR|EX_ZEROR|EX_CMDWIN|EX_LOCK_OK|EX_MODIFY,
+	ADDR_LINES),
 EXCMD(CMD_isearch,	"isearch",	ex_findpat,
 	EX_BANG|EX_RANGE|EX_DFLALL|EX_WHOLEFOLD|EX_EXTRA|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_LINES),