Use textwrap3 on Python 2

buildtools/config.py

@@ -969,14 +969,3 @@ def updateLicenseFiles(cfg):
     with open('LICENSE.txt', 'w') as f:
         f.write(text)
 
-try:
-    from textwrap import indent
-except ImportError:
-    def indent(text, prefix, predicate=None):
-        if predicate is None:
-            def predicate(line):
-                return line.strip()
-        def prefixed_lines():
-            for line in text.splitlines(True):
-                yield (prefix + line if predicate(line) else line)
-        return ''.join(prefixed_lines())

requirements/devel.txt

@@ -10,3 +10,4 @@ pytest
 pytest-xdist
 pytest-timeout
 pathlib2 ; python_version < "3"
+textwrap3 ; python_version < "3"

wscript

@@ -10,7 +10,12 @@
 import sys
 import os
 
-from buildtools.config import Config, runcmd, msg, indent
+try:
+    from textwrap import indent
+except ImportError:
+    from textwrap3 import indent
+
+from buildtools.config import Config, runcmd, msg
 cfg = Config(True)
 
 #-----------------------------------------------------------------------------