Fix typo.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@135473 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Headers/float.h b/lib/Headers/float.h
index 6eede0b..b7cb73a 100644
--- a/lib/Headers/float.h
+++ b/lib/Headers/float.h
@@ -24,7 +24,7 @@
#ifndef __FLOAT_H
#define __FLOAT_H
-/* If we're on MinGW, fall baack to the system's float.h, which might have
+/* If we're on MinGW, fall back to the system's float.h, which might have
* additional definitions provided for Windows.
* For more details see http://msdn.microsoft.com/en-us/library/y0ybw9fy.aspx
*/