veyron/lib/textutil: Fix minor typo.

Change-Id: I5035221003722ae0abd5e3b4174280d9294bb67e
diff --git a/lib/textutil/line_writer.go b/lib/textutil/line_writer.go
index 0b70ae7..c7df3a5 100644
--- a/lib/textutil/line_writer.go
+++ b/lib/textutil/line_writer.go
@@ -155,7 +155,7 @@
 //
 // SetIndents() is equivalent to SetIndents(""), SetIndents("", ""), etc.
 //
-// A new LineWriter instance has no idents by default.
+// A new LineWriter instance has no indents by default.
 //
 // Calls Flush internally, and returns any Flush error.
 func (w *LineWriter) SetIndents(indents ...string) error {