patch 9.0.2132: Duplicate Netbeans Error Message

Problem:  Duplicate Netbeans Error Message
Solution: Remove duplicate message

We have 2 error Messages used for the Netbeans interface:

- EXTERN char e_invalid_buffer_identifier_in_close[]
  INIT(= N_("E648: Invalid buffer identifier in close"));
- EXTERN char e_invalid_buffer_identifier_in_close_2[]
  INIT(= N_("E649: Invalid buffer identifier in close"));

Since the error message is exactly the same, get rid of the  second
message.

closes: #13584

Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/runtime/doc/netbeans.txt b/runtime/doc/netbeans.txt
index 241fdb7..905c797 100644
--- a/runtime/doc/netbeans.txt
+++ b/runtime/doc/netbeans.txt
@@ -1,4 +1,4 @@
-*netbeans.txt*  For Vim version 9.0.  Last change: 2022 Apr 03
+*netbeans.txt*  For Vim version 9.0.  Last change: 2023 Nov 26
 
 
 		  VIM REFERENCE MANUAL    by Gordon Prieur et al.
@@ -846,7 +846,7 @@
 These errors occur when a message violates the protocol:
 *E627* *E628* *E629* *E632* *E633* *E634* *E635* *E636*
 *E637* *E638* *E639* *E640* *E641* *E642* *E643* *E644* *E645* *E646*
-*E647* *E648* *E649* *E650* *E651* *E652*
+*E647* *E648* *E650* *E651* *E652*
 
 
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