tweak docstrings

This fixes section names:
  Arguments -> Args
  Return -> Returns

It also fixes the last line of the docstring so it isn't cuddled.

And we fix a few docstrings that should be one line but aren't.

BUG=None
TEST=`./buildbot/run_tests` passes

Change-Id: Iaafb7d346a3aee97a40dab340463894c02533091
Reviewed-on: https://chromium-review.googlesource.com/176279
Reviewed-by: Mike Frysinger <vapier@chromium.org>
Commit-Queue: Mike Frysinger <vapier@chromium.org>
Tested-by: Mike Frysinger <vapier@chromium.org>
diff --git a/scripts/upload_symbols.py b/scripts/upload_symbols.py
index d6ace19..5365b11 100644
--- a/scripts/upload_symbols.py
+++ b/scripts/upload_symbols.py
@@ -6,7 +6,8 @@
 
 This script need only be used to upload release builds symbols or to debug
 crashes on non-release builds (in which case try to only upload the symbols
-for those executables involved)."""
+for those executables involved).
+"""
 
 import ctypes
 import multiprocessing