Fix some grammatical errors.
authorRichard Smith <richard-llvm@metafoo.co.uk>
Thu, 31 Jul 2014 04:25:36 +0000 (04:25 +0000)
committerRichard Smith <richard-llvm@metafoo.co.uk>
Thu, 31 Jul 2014 04:25:36 +0000 (04:25 +0000)
commit32dbdf62bec05f18e8f2710a110fa4e7f31fdc01
treeac47710e03be7f6c77909997280993ab7e7e1c1d
parenta80dd08b56dc20a7be3f9b31eb08fc322b8e7378
Fix some grammatical errors.

llvm-svn: 214383
llvm/docs/LangRef.rst