head/Mk/Uses/compiler.mk: fix typo

[Rainer Hurling]

Just a small typo in newest patch r334411 of head/Mk/Uses/compiler.mk

Greetings,
Rainer Hurling

--- compiler.mk.orig	2013-11-20 13:47:45.000000000 +0100
+++ compiler.mk	2013-11-20 13:56:25.000000000 +0100
@@ -22,7 +22,7 @@
 # ALT_COMPILER_VERSION:	2 first digit of the version: 33 for clang
3.3.*, 46 for gcc 4.6.* of the ALT_COMPILER_TYPE
 #
 # COMPILER_FEATURES:	the list of features supported by the compiler
include the standard C++ library.
-# CHOSEN_COMPILER_TYPE:	can be gcc or clang (type of compiler chosen by
the famework)
+# CHOSEN_COMPILER_TYPE:	can be gcc or clang (type of compiler chosen by
the framework)

 .if !defined(_INCLUDE_USES_COMPILER_MK)
 _INCLUDE_USES_COMPILER_MK=	yes