Changing the cashe size of BSD db library

[Shigio YAMAGUCHI]

Hello all,
I would like to change the default value of the cache size of
BSD db library from 5MB to 50MB.
It is suitable for recent machines, I think.
Any comment?

[libutil/gparam.h]
/*
 * The default cache size of db library is 5MB.
 * The minimum size is 500KB.
 */
#define GTAGSCACHE      5000000         /* default cache size 5MB       */
        |
        v
#define GTAGSCACHE      50000000        /* default cache size 50MB      */