Fix duplicate error number.

crypto/ec/ec.h

@@ -1056,7 +1056,7 @@ void ERR_load_EC_strings(void);
 #define EC_R_DECODE_ERROR				 142
 #define EC_R_DISCRIMINANT_IS_ZERO			 118
 #define EC_R_EC_GROUP_NEW_BY_NAME_FAILURE		 119
-#define EC_R_FIELD_TOO_LARGE				 138
+#define EC_R_FIELD_TOO_LARGE				 143
 #define EC_R_GROUP2PKPARAMETERS_FAILURE			 120
 #define EC_R_I2D_ECPKPARAMETERS_FAILURE			 121
 #define EC_R_INCOMPATIBLE_OBJECTS			 101

crypto/ec/ec_err.c

 /* crypto/ec/ec_err.c */
 /* ====================================================================
- * Copyright (c) 1999-2006 The OpenSSL Project.  All rights reserved.
+ * Copyright (c) 1999-2007 The OpenSSL Project.  All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions