message: Fix missing backtick in documentation for StridedSliceAssign.
  This was causing the docs to be formatted incorrectly.
diff: @@ -4,7 +4,7 @@ op {
  description: <<END
  The values of `value` are assigned to the positions in the variable
  `ref` that are selected by the slice parameters. The slice parameters
  -`begin, `end`, `strides`, etc. work exactly as in `StridedSlice`.
  +`begin`, `end`, `strides`, etc. work exactly as in `StridedSlice`.
  NOTE this op currently does not support broadcasting and so `value`'s
  shape must be exactly the shape produced by the slice of `ref`.
  