Fix flake8, black and pylint errors in code

Change-Id: Ic03f4d31e2ba9801be20d3679bd5749948cab39d
Signed-off-by: garciadeblas <gerardo.garciadeblas@telefonica.com>
diff --git a/osm_ee/util/util_ee.py b/osm_ee/util/util_ee.py
index 1d0a232..915e97f 100644
--- a/osm_ee/util/util_ee.py
+++ b/osm_ee/util/util_ee.py
@@ -27,19 +27,16 @@
 logger = logging.getLogger("osm_ee.util")
 
 
-async def local_async_exec(command: str
-                           ) -> (int, str, str):
+async def local_async_exec(command: str) -> (int, str, str):
     """
-        Executed a local command using asyncio.
-        TODO - do not know yet if return error code, and stdout and strerr or just one of them
+    Executed a local command using asyncio.
+    TODO - do not know yet if return error code, and stdout and strerr or just one of them
     """
     scommand = split(command)
 
     logger.debug("Execute local command: {}".format(command))
     process = await asyncio.create_subprocess_exec(
-        *scommand,
-        stdout=asyncio.subprocess.PIPE,
-        stderr=asyncio.subprocess.PIPE
+        *scommand, stdout=asyncio.subprocess.PIPE, stderr=asyncio.subprocess.PIPE
     )
 
     # wait for command terminate