cmake: fix mock URL
cmake: fix mock URL

Change-Id: Ic122aad86eaeec7137cfbaa6e4e1924b088d3aaf
Reviewed-on: http://review.couchbase.org/33854
Reviewed-by: Brett Lawson <c8c4369773d7d7226e031f0c4af62e3f38a08510@gmail.com>
Tested-by: Mark Nunberg <e7d42768707bf23038325b0b68d4b577e5f6064a@haskalah.org>

couchbase/libcouchbase,avsej/libcouchbase,signmotion/libcouchbase,couchbase/libcouchbase,mnunberg/libcouchbase,couchbase/libcouchbase,avsej/libcouchbase,signmotion/libcouchbase,mody/libcouchbase,kojiromike/libcouchbase,mnunberg/libcouchbase,couchbase/libcouchbase,maxim-ky/libcouchbase,signmotion/libcouchbase,couchbase/libcouchbase,kojiromike/libcouchbase,PureSwift/libcouchbase,mnunberg/libcouchbase,avsej/libcouchbase,avsej/libcouchbase,mody/libcouchbase,maxim-ky/libcouchbase,mody/libcouchbase,PureSwift/libcouchbase,senthilkumaranb/libcouchbase,kojiromike/libcouchbase,senthilkumaranb/libcouchbase,avsej/libcouchbase,couchbase/libcouchbase,PureSwift/libcouchbase,couchbase/libcouchbase,avsej/libcouchbase,PureSwift/libcouchbase,mody/libcouchbase,mnunberg/libcouchbase,mnunberg/libcouchbase,kojiromike/libcouchbase,senthilkumaranb/libcouchbase,signmotion/libcouchbase,avsej/libcouchbase,maxim-ky/libcouchbase,senthilkumaranb/libcouchbase,maxim-ky/libcouchbase