Fix manifest_fixer.py warnings

Fix a few warnings showing up in manifest_*.py

Test: manifest_fixer_test.py
Test: manifest_check_test.py
Flag: EXEMPT refactor
Change-Id: I144100d6d4aa7f5dff7eec79b4bd2d9d5da52153
diff --git a/scripts/manifest_check_test.py b/scripts/manifest_check_test.py
index 8003b3e..7aaf8a9 100755
--- a/scripts/manifest_check_test.py
+++ b/scripts/manifest_check_test.py
@@ -44,8 +44,8 @@
 class EnforceUsesLibrariesTest(unittest.TestCase):
     """Unit tests for add_extract_native_libs function."""
 
-    def run_test(self, xml, apk, uses_libraries=[], optional_uses_libraries=[],
-                 missing_optional_uses_libraries=[]): #pylint: disable=dangerous-default-value
+    def run_test(self, xml, apk, uses_libraries=(), optional_uses_libraries=(),
+                 missing_optional_uses_libraries=()):  #pylint: disable=dangerous-default-value
         doc = minidom.parseString(xml)
         try:
             relax = False
@@ -114,14 +114,14 @@
         self.assertFalse(matches)
 
     def test_missing_uses_library(self):
-        xml = self.xml_tmpl % ('')
-        apk = self.apk_tmpl % ('')
+        xml = self.xml_tmpl % ''
+        apk = self.apk_tmpl % ''
         matches = self.run_test(xml, apk, uses_libraries=['foo'])
         self.assertFalse(matches)
 
     def test_missing_optional_uses_library(self):
-        xml = self.xml_tmpl % ('')
-        apk = self.apk_tmpl % ('')
+        xml = self.xml_tmpl % ''
+        apk = self.apk_tmpl % ''
         matches = self.run_test(xml, apk, optional_uses_libraries=['foo'])
         self.assertFalse(matches)
 
@@ -256,12 +256,12 @@
         "targetSdkVersion:'%s'\n"
         "uses-permission: name='android.permission.ACCESS_NETWORK_STATE'\n")
 
-    def test_targert_sdk_version_28(self):
+    def test_target_sdk_version_28(self):
         xml = self.xml_tmpl % '28'
         apk = self.apk_tmpl % '28'
         self.run_test(xml, apk, '28')
 
-    def test_targert_sdk_version_29(self):
+    def test_target_sdk_version_29(self):
         xml = self.xml_tmpl % '29'
         apk = self.apk_tmpl % '29'
         self.run_test(xml, apk, '29')