Fix for minor typos in stack.py

Change-Id: I09846ba58d3483d95373c685dd0df34561dcd982
Newline cleanups in db API

Remove some gratuitous and inconsistent whitespace

Change-Id: I1d4ba5466300249874cdfceecb3c44f0d3b9f230
Merge "Fix for minor typos in stack.py"
Merge "Newline cleanups in db API"