Fix blank line issues reported by flake8

- E301 expected 1 blank line
- E302 expected 2 blank lines
- E303 too many blank lines
- E305 expected 2 blank lines after class or function definition
- E306 expected 1 blank line before a nested definition

Fixed automatically with autopep8:

  git ls-files | grep py$ | xargs autopep8 --in-place \
    --select E301,E302,E303,E305,E306

Manually fix issues in project.py caused by misuse of block comments.

Change-Id: Iee840fcaff48aae504ddac9c3e76d2acd484f6a9
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/254599
Reviewed-by: Mike Frysinger <vapier@google.com>
Tested-by: David Pursehouse <dpursehouse@collab.net>

1 files changed, 1 insertions, 0 deletions

diff --git a/subcmds/prune.py b/subcmds/prune.py
index ff2fba1d..e90ff213 100644
--- a/subcmds/prune.py
+++ b/subcmds/prune.py
@@ -18,6 +18,7 @@ from __future__ import print_function
 from color import Coloring
 from command import PagedCommand
 
+
 class Prune(PagedCommand):
   common = True
   helpSummary = "Prune (delete) already merged topics"