[Dovecot] uint_cmp bug

[Mike Abbott]

In reviewing the differences between 1.1.8 and 1.1.9 I saw a probable  
bug in the new function uint_cmp() in src/lib-storage/index/maildir/ 
maildir-sync-index.c:
        if (*i1 < *i2)
                return -1;
        else if (*i1 > *i2)
                return -1;
        else
                return 0;
The second case should return 1 not -1.