tg-fixits.td: fixup for Linux, which does not have a correct implementation of
llvm::sys::locale::columnWidth()


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172152 91177308-0d34-0410-b5e6-96231b3b80d8
Improve on my last test for patch for // rdar://12897704


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172154 91177308-0d34-0410-b5e6-96231b3b80d8