tree 287b7bc065637bf751aae58da989acfef3323c85
parent 088c2fc6e33737a406e69a99d75f06d3fbb05e30
author Shawn Pearce <spearce@spearce.org> 1452389245 -0800
committer Shawn Pearce <spearce@spearce.org> 1452554834 -0800

RefTree: Change peel suffix to " ^" (space carrot)

Using ^{} as the peel suffix has caused problems when projects used
tags like v2.1 and then v2.1.1, v2.2.2, etc.  The peeled value for
v2.1 was stored very far away in the tree relative to v2.1 itself as
^ sorts in the ASCII/UTF-8 encoding after all other common tag
characters like digits and dots.

Use " ^" instead as space is not valid in a reference name, sorts
before all other valid reference characters (thus forcing next entry
locality) and this looks like a peeled marker for the prior tag.

Change-Id: I26d2247a0428dfe26a9c319c02159502b3a67455