Made comment more clear.

examples/CMakeLists.txt

@@ -39,7 +39,7 @@ project(examples)
 
 # Tell cmake we will need dlib.  This command will pull in dlib and compile it
 # into your project.  Note that you don't need to compile or install dlib.  All
-# it needs is the dlib source code folder and it will take care of everything.
+# cmake needs is the dlib source code folder and it will take care of everything.
 add_subdirectory(../dlib dlib_build)