commit e749a77793617ec0a30f20495103708483cd53dc
author grobbins@google.com <grobbins@google.com@b3aa69f0-f65c-a609-0a27-78855af037c1> Thu Jun 13 00:08:40 2013
committer grobbins@google.com <grobbins@google.com@b3aa69f0-f65c-a609-0a27-78855af037c1> Thu Jun 13 00:08:40 2013
tree da3bd461d5bdbc92df8cf682ba844c59f1951799
parent 64f473cc22ab9901d55812abbcc264a41539cb94

Fix a string type.

Source/GTMMIMEDocument.m

diff --git a/Source/GTMMIMEDocument.m b/Source/GTMMIMEDocument.m
index a12786b..01c73ff 100644
--- a/Source/GTMMIMEDocument.m
+++ b/Source/GTMMIMEDocument.m
@@ -174,7 +174,7 @@
   // use an easily-readable boundary string
   NSString *const kBaseBoundary = @"END_OF_PART";
 
-  NSMutableString *boundary = [NSMutableString stringWithString:kBaseBoundary];
+  NSString *boundary = kBaseBoundary;
 
   // if the boundary isn't unique, append random numbers, up to 10 attempts;
   // if that's still not unique, use a random number sequence instead,