Use correct and non-hardcoded buffer sizes
Use correct and non-hardcoded buffer sizes

The magic values 44 and 10 were harder for a reader to guess and
larger than necessary. The new and correct values also end up saving
57 bytes per doc info record.

Change-Id: Ieeff565d96acc929b43245686126228d3b401161
Reviewed-on: http://review.couchbase.org/27454
Reviewed-by: Aaron Miller <41fcc51335f382e0855796cc35dd33f571f2d8f7@ninjawhale.com>
Tested-by: Aaron Miller <41fcc51335f382e0855796cc35dd33f571f2d8f7@ninjawhale.com>
Reviewed-by: Volker Mische <fb414f8ac0dbbf87663550ae4ef5fc95b1041941@gmail.com>
Tested-by: Filipe David Borba Manana <e0fcd583df77ec6c08e6d1257619cc1216ddc994@gmail.com>

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