[llvm-rc] Allow optional commas between the string table index and value

This form is even used in one of the examples at
https://msdn.microsoft.com/en-us/library/windows/desktop/aa381050(v=vs.85).aspx.

Differential Revision: https://reviews.llvm.org/D46508

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@331669 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed