Fix example in documentation of target triple sanitization.

llvm-svn: 220804

libcxx/test/lit.cfg

@@ -455,7 +455,7 @@ class Configuration(object):
                 [self.cxx, '-dumpmachine']).strip()
             # Drop sub-major version components from the triple, because the
             # current XFAIL handling expects exact matches for feature checks.
-            # Example: x86_64-unknown-linux-gnu -> x86_64-unknown-linux-gnu.
+            # Example: x86_64-apple-darwin14.0.0 -> x86_64-apple-darwin14
             # The 5th group handles triples greater than 3 parts
             # (ex x86_64-pc-linux-gnu).
             target_triple = re.sub(r'([^-]+)-([^-]+)-([^.]+)([^-]*)(.*)',