[PATCH] revset: parse x^:: as (x^):: (issue5764)

[Augie Fackler]

> On Dec 31, 2017, at 7:23 AM, Yuya Nishihara <yuya at tcha.org> wrote:
> 
> # HG changeset patch
> # User Yuya Nishihara <yuya at tcha.org>
> # Date 1514624123 -32400
> #      Sat Dec 30 17:55:23 2017 +0900
> # Node ID 4d5be53b4adbc913cfbded05c94307ec3ced1f06
> # Parent  e01549a7bf0a6a7adbbb317a5d4bfde36c205b4d
> revset: parse x^:: as (x^):: (issue5764)

Queued with enormous amounts of delight! This is _by far_ the single most common reason for me to have to use parens (and, by association, to have to quote a revset query in my shell).