Miscellaneous improvements to code style script

Signed-off-by: David Horstmann <david.horstmann@arm.com>
diff --git a/scripts/code_style.py b/scripts/code_style.py
index 7923db4..7de223a 100755
--- a/scripts/code_style.py
+++ b/scripts/code_style.py
@@ -32,9 +32,9 @@
     """
     Use git ls-files to get a list of the source files
     """
-    git_ls_files_cmd = ["git", "ls-files", \
-            "*.[hc]", \
-            "tests/suites/*.function", \
+    git_ls_files_cmd = ["git", "ls-files",
+            "*.[hc]",
+            "tests/suites/*.function",
             "scripts/data_files/*.fmt"]
 
     result = subprocess.run(git_ls_files_cmd, stdout=subprocess.PIPE, \
@@ -56,8 +56,7 @@
     """
     Get the version string from Uncrustify
     """
-    version_args = ["--version"]
-    result = subprocess.run([UNCRUSTIFY_EXE] + version_args, \
+    result = subprocess.run([UNCRUSTIFY_EXE, "--version"], \
             stdout=subprocess.PIPE, stderr=subprocess.PIPE, check=False)
     if result.returncode != 0:
         print("Error getting version: "+str(result.stderr, "utf-8"), \