[PATCH] cpp11-migrate: Add '-supports' command line switch.

[Edwin Vane]

  Just a few more comment and doc tweaks. Almost there.


================
Comment at: cpp11-migrate/Core/Transform.h:275
@@ +274,3 @@
+/// In the sub-classed factory constructor, specify the earliest versions since
+/// the compilers in \c CompilerVersions are supporting the feature introduced
+/// by the transform. See the example below.
----------------
are supporting => support

================
Comment at: docs/MigratorUsage.rst:18
@@ +17,3 @@
+
+If both are enabled, only explicitly specified transformations that are
+supported by the given compilers will be applied.
----------------
I'd replace "If both are enabled," with "If both ways of specifying transforms are used ".

Also, take out the comma.


http://llvm-reviews.chandlerc.com/D1202