Make BtCmdLineTool more readable

Bug: 63139124
Test: Manual
Change-Id: Ia70257d52db7d46ff0f8aa1d27953a583697630d
diff --git a/acts/tests/google/bt/pts/BtCmdLineTest.py b/acts/tests/google/bt/pts/BtCmdLineTest.py
index cb97233..2e81163 100644
--- a/acts/tests/google/bt/pts/BtCmdLineTest.py
+++ b/acts/tests/google/bt/pts/BtCmdLineTest.py
@@ -24,9 +24,12 @@
 from acts.test_utils.bt.BluetoothBaseTest import BluetoothBaseTest
 from cmd_input import CmdInput
 from queue import Empty
+
 import os
 import uuid
 
+from acts.test_utils.tel.tel_test_utils import setup_droid_properties
+
 
 class BtCmdLineTest(BluetoothBaseTest):
     target_mac_address = ""
@@ -37,7 +40,8 @@
             self.log.error(
                 "Missing mandatory user config \"target_mac_address\"!")
             return False
-        self.target_mac_address = self.user_params["target_mac_address"].upper()
+        self.target_mac_address = self.user_params["target_mac_address"].upper(
+        )
 
         self.android_devices[0].droid.bluetoothSetLocalName("CMD LINE Test")
         if len(self.android_devices) > 1:
@@ -46,7 +50,7 @@
                 self.log.error(
                     "Missing mandatory user config \"sim_conf_file\"!")
                 return False
-            sim_conf_file = self.user_params["sim_conf_file"]
+            sim_conf_file = self.user_params["sim_conf_file"][0]
             # If the sim_conf_file is not a full path, attempt to find it
             # relative to the config file.
             if not os.path.isfile(sim_conf_file):
@@ -61,7 +65,7 @@
             music_path_str = "music_path"
             android_music_path = "/sdcard/Music/"
             if music_path_str not in self.user_params:
-                log.error("Need music for A2DP testcases")
+                self.log.error("Need music for A2DP testcases")
                 return False
             music_path = self.user_params[music_path_str]
             self._add_music_to_primary_android_device(music_path,
@@ -74,8 +78,8 @@
             for filename in filenames:
                 file = os.path.join(dirname, filename)
                 #TODO: Handle file paths with spaces
-                self.android_devices[0].adb.push(
-                    "{} {}".format(file, android_music_path))
+                self.android_devices[0].adb.push("{} {}".format(
+                    file, android_music_path))
 
     def setup_class(self):
         return True