wscript unreadable in commit/00681048

$ lsb_release -d
Description:	Arch Linux

00681048 introduced the following error here:

Waf: The wscript in '/home/glitsj16/ntpsec-git/src/ntpsec' is unreadable
Traceback (most recent call last):
  File "/home/glisj16/ntpsec-git/src/ntpsec/.waf3-1.9.5-e9e36ebc81cc860d8a25c4c34f0b27ec/waflib/Scripting.py", line 104, in waf_entry_point
    set_main_module(os.path.normpath(os.path.join(Context.run_dir,Context.WSCRIPT_FILE)))
  File "/home/glitsj16/ntpsec-git/src/ntpsec/.waf3-1.9.5-e9e36ebc81cc860d8a25c4c34f0b27ec/waflib/Scripting.py", line 135, in set_main_module
    Context.g_module=Context.load_module(file_path)
  File "/home/glitsj16/ntpsec-git/src/ntpsec/.waf3-1.9.5-e9e36ebc81cc860d8a25c4c34f0b27ec/waflib/Context.py", line 353, in load_module
    exec(compile(code,path,'exec'),module.__dict__)
  File "/home/glitsj16/ntpsec-git/src/ntpsec/wscript", line 212
    if ctx.cmd == 'clean':
                         ^
TabError: inconsistent use of tabs and spaces in indentation