Fix SF bug #622849: in _wrap_chunks(), ensure that leading whitespace in
the input string is always preserved.
diff --git a/Lib/textwrap.py b/Lib/textwrap.py
index fc93b9b..5860d7d 100644
--- a/Lib/textwrap.py
+++ b/Lib/textwrap.py
@@ -202,8 +202,9 @@
# Maximum width for this line.
width = self.width - len(indent)
- # First chunk on line is whitespace -- drop it.
- if chunks[0].strip() == '':
+ # First chunk on line is whitespace -- drop it, unless this
+ # is the very beginning of the text (ie. no lines started yet).
+ if chunks[0].strip() == '' and lines:
del chunks[0]
while chunks: