Running this script gives
```
"llvm-project/llvm/./utils/wciia.py", line 56
if word == "N:":
TabError: inconsistent use of tabs and spaces in indentation
```
Under emacs' whitespace-mode, it shows
```
for·line·in·code_owners_file:$
····for·word·in·line.split():$
» if·word·==·"N:":$
» » name·=·line[2:].strip()$
» » if·code_owner:$
» » » process_code_owner(code_owner)$
» » » code_owner·=·{}$
```
I use `yapf` to format this script directly and it's running correctly.
Make sure all print statements are compatible with Python 2 and Python3 using
the `from __future__ import print_function` statement.
Differential Revision: https://reviews.llvm.org/D56249
llvm-svn: 350307
Kai Luo