patch 9.0.1594: some internal error messages are translated

Problem:    Some internal error messages are translated.
Solution:   Consistently do not translate internal error messages.
            (closes #12459)
diff --git a/src/netbeans.c b/src/netbeans.c
index 7966cf5..a27148c 100644
--- a/src/netbeans.c
+++ b/src/netbeans.c
@@ -518,7 +518,7 @@
 	 * so I'm disabling it except for debugging.
 	 */
 	nbdebug(("nb_parse_cmd: Command error for \"%s\"\n", cmd));
-	emsg(_(e_bad_return_from_nb_do_cmd));
+	emsg(e_bad_return_from_nb_do_cmd);
 #endif
     }
 }