patch 9.1.0966: Vim9: :enum command can be shortened

Problem:  Vim9: :enum command can be shortened
Solution: prevent shortening of :enum command by adding the EX_WHOLE
          flag to command definition (h-east)

closes: #16305

Signed-off-by: h-east <h.east.727@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/src/ex_cmds.h b/src/ex_cmds.h
index dc5da0a..92a40f2 100644
--- a/src/ex_cmds.h
+++ b/src/ex_cmds.h
@@ -597,7 +597,7 @@
 	EX_BANG|EX_TRLBAR,
 	ADDR_NONE),
 EXCMD(CMD_enum,		"enum",		ex_class,
-	EX_EXTRA|EX_CMDWIN|EX_LOCK_OK|EX_EXPORT,
+	EX_EXTRA|EX_CMDWIN|EX_LOCK_OK|EX_WHOLE|EX_EXPORT,
 	ADDR_NONE),
 EXCMD(CMD_eval,		"eval",		ex_eval,
 	EX_EXTRA|EX_NOTRLCOM|EX_EXPR_ARG|EX_SBOXOK|EX_CMDWIN|EX_LOCK_OK,