Fix whitespace causing a purify suppression not to work right.

BUG=20703
TEST=none


git-svn-id: svn://svn.chromium.org/chrome/trunk/src@25582 0039d316-1c4b-4281-b951-d872f2087c98

chrome/test/data/purify/unit_tests.exe_MLK_flakey.txt

@@ -188,4 +188,5 @@ Alloc Location
    chrome/common/render_messages_internal.h  ViewMsg_VisitedLink_NewTable::ViewMsg_VisitedLink_NewTable(void * const const&)
    chrome/renderer/render_thread_unittest.cc  RenderThreadTest_TestVisitedMsg_Test::TestBody(void)
    testing/gtest/src/gtest.cc  testing::Test::Run(void)
-   ^^^
+   ^^^  
+