Make a sentence easier to parse

llvm-svn: 17225

llvm/docs/MakefileGuide.html

@@ -63,8 +63,8 @@
   a departure from BSD in order to implement additional features needed by LLVM.
   </p>
   <p>Although makefile systems such as automake were attempted at one point, it
-  has become clear that the variations required by LLVM from any Makefile norm
-  are too many to strictly use a more limited tool. Consequently, LLVM requires 
+  has become clear that the differences between the LLVM way of doing things and
+  the Makefile norm are too great to use a more limited tool. Consequently, LLVM requires 
   simply GNU Make 3.79, a widely portably makefile processor. LLVM unabashedly 
   makes heavy use of the features of GNU Make so the dependency on GNU Make is 
   firm. If you're not familiar with <tt>make</tt>, it is recommended that you