[Jenkins] auto-formatting by clang-format version 10.0.0-4ubuntu1
[Jenkins] auto-formatting by clang-format version 10.0.0-4ubuntu1

stan-dev/math,stan-dev/math,stan-dev/math,stan-dev/math,stan-dev/math,stan-dev/math,stan-dev/math,stan-dev/math,stan-dev/math