Fix implicit pointer to integral type cast
Fix implicit pointer to integral type cast

From gcc:

src/db_compact.c:87:5: warning: passing argument 3 of 'couchstore_compact_db_ex' makes integer from pointer without a cast [enabled by default]
src/db_compact.c:40:20: note: expected 'uint64_t' but argument is of type 'void *'

Change-Id: I9326c2bb4ff639fca995f1de4c0f5fe5172c11a1
Reviewed-on: http://review.couchbase.org/24162
Reviewed-by: Fulu Li <7f0c3670e14709a40a629f005ec9e9fa3dd32520@couchbase.com>
Reviewed-by: Aaron Miller <41fcc51335f382e0855796cc35dd33f571f2d8f7@ninjawhale.com>
Tested-by: Aaron Miller <41fcc51335f382e0855796cc35dd33f571f2d8f7@ninjawhale.com>
Tested-by: Filipe David Borba Manana <e0fcd583df77ec6c08e6d1257619cc1216ddc994@gmail.com>

jimwwalker/couchstore,couchbaselabs/couchstore,couchbaselabs/couchstore,t3rm1n4l/couchstore,couchbaselabs/couchstore-specials,vmx/couchstore,abhinavdangeti/couchstore,couchbaselabs/couchstore,jimwwalker/couchstore,abhinavdangeti/couchstore,couchbaselabs/couchstore-specials,t3rm1n4l/couchstore,jimwwalker/couchstore,couchbaselabs/couchstore-specials,vmx/couchstore,vmx/couchstore,couchbaselabs/couchstore-specials,abhinavdangeti/couchstore,t3rm1n4l/couchstore,couchbaselabs/couchstore-specials