Fix typo, pointed out by Trevor Harmon.

llvm-svn: 118163
diff --git a/llvm/docs/TestingGuide.html b/llvm/docs/TestingGuide.html
index 3cbcd1a..608c6de 100644
--- a/llvm/docs/TestingGuide.html
+++ b/llvm/docs/TestingGuide.html
@@ -153,7 +153,7 @@
   The more comprehensive test suite that includes whole 
 programs in C and C++ is in the <tt>test-suite</tt> module. This module should
 be checked out to the <tt>llvm/projects</tt> directory (don't use another name
-then the default "test-suite", for then the test suite will be run every time
+than the default "test-suite", for then the test suite will be run every time
 you run <tt>make</tt> in the main <tt>llvm</tt> directory).
 When you <tt>configure</tt> the <tt>llvm</tt> module, 
 the <tt>test-suite</tt> directory will be automatically configured.