Fix reference to non-existent MSVS version

MSVS2014 does not exist. MSVS2013 has the bugs with raw string literals.
They might work in MSVS2015 - we'll see.

R=thakis@chromium.org

Review URL: https://codereview.chromium.org/1416033004

Cr-Commit-Position: refs/heads/master@{#358358}

Author: randomascii

styleguide/c++/c++11.html

@@ -339,7 +339,7 @@ <h3 id="blacklist_banned">C++11 Banned Features</h3>
 sequences, easing parsing in regex expressions, for example</td>
 <td><a href="http://en.cppreference.com/w/cpp/language/string_literal">
 string literal</a></td>
-<td>Causes incorrect line numbers in MSVS2014 and gcc. Reevaluate once that works. <a href="https://groups.google.com/a/chromium.org/forum/#!topic/chromium-dev/2kWQHbbuMHI">Discussion thread</a></td>
+<td>Causes incorrect line numbers in MSVS2013 and gcc. Reevaluate once that works. <a href="https://groups.google.com/a/chromium.org/forum/#!topic/chromium-dev/2kWQHbbuMHI">Discussion thread</a></td>
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