BaseTools: Clean up source files

1. Do not use tab characters
2. No trailing white space in one line
3. All files must end with CRLF

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Liming Gao <liming.gao@intel.com>
Cc: Yonghong Zhu <yonghong.zhu@intel.com>
Reviewed-by: Yonghong Zhu <yonghong.zhu@intel.com>

BaseTools/Source/Python/sitecustomize.py

@@ -16,6 +16,6 @@ import locale
 if sys.platform == "darwin":
   DefaultLocal = locale.getdefaultlocale()[1]
   if DefaultLocal is None:
-    DefaultLocal = 'UTF8'  
+    DefaultLocal = 'UTF8'
   sys.setdefaultencoding(DefaultLocal)