core: keep history of sum.cpp
authorAlexander Alekhin <alexander.alekhin@intel.com>
Wed, 13 Feb 2019 10:49:36 +0000 (13:49 +0300)
committerAlexander Alekhin <alexander.alekhin@intel.com>
Wed, 13 Feb 2019 10:49:36 +0000 (13:49 +0300)

Trivial merge