smartdenovo: fix compile error for debian

[darmac]

smartdenovo compile fail on Debian.
The issue is the same as ruanjue/smartdenovo#35
And someone give a fix suggestion on ruanjue/smartdenovo#22

[adamjstewart]

Flake8:

var/spack/repos/builtin/packages/smartdenovo/package.py:21: [E128] continuation line under-indented for visual indent
var/spack/repos/builtin/packages/smartdenovo/package.py:24: [E128] continuation line under-indented for visual indent

[darmac]

Flake8:

var/spack/repos/builtin/packages/smartdenovo/package.py:21: [E128] continuation line under-indented for visual indent
var/spack/repos/builtin/packages/smartdenovo/package.py:24: [E128] continuation line under-indented for visual indent

How to resolve this issue? I can't reproduce that log by typing spack flake8

[adamjstewart]

Just put them all on the same line or indent to the same level as the opening parentheses. You may need to install a newer version of flake8 to reproduce locally.

[darmac]

Just put them all on the same line or indent to the same level as the opening parentheses. You may need to install a newer version of flake8 to reproduce locally.

Fixed this issue in 568baf2