Suppress gcc warning about possibly-uninitialized variable. It's not

clear to me why I'd not seen this message before --- on F-9 it seems to
only happen if Asserts are disabled, which ought to be irrelevant.
Maybe that affects a decision whether to inline get_ten(), which would
be needed to expose the warning condition to the compiler?  Anyway,
the fix is clear.

src/backend/utils/mb/conversion_procs/euc_jis_2004_and_shift_jis_2004/euc_jis_2004_and_shift_jis_2004.c

@@ -5,7 +5,7 @@
  * Copyright (c) 2007-2008, PostgreSQL Global Development Group
  *
  * IDENTIFICATION
- *	  $PostgreSQL: pgsql/src/backend/utils/mb/conversion_procs/euc_jis_2004_and_shift_jis_2004/euc_jis_2004_and_shift_jis_2004.c,v 1.3 2008/01/01 20:31:21 tgl Exp $
+ *	  $PostgreSQL: pgsql/src/backend/utils/mb/conversion_procs/euc_jis_2004_and_shift_jis_2004/euc_jis_2004_and_shift_jis_2004.c,v 1.4 2008/08/29 16:34:14 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -210,6 +210,7 @@ get_ten(int b, int *ku)
 	else
 	{
 		ten = -1;				/* error */
+		*ku = 0;				/* keep compiler quiet */
 	}
 	return ten;
 }