Log Message:
fish: Update to 3.1.2

# fish 3.1.2 (released April 29, 2020)

This release of fish fixes a major issue discovered in fish 3.1.1:

- Commands such as `fzf` and `enhancd`, when used with `eval`, would hang. \ 
`eval` buffered output too aggressively, which has been fixed (#6955).

If you are upgrading from version 3.0.0 or before, please also review the \ 
release notes for 3.1.1, 3.1.0 and 3.1b1 (included below).

---

# fish 3.1.1 (released April 27, 2020)

This release of fish fixes a number of major issues discovered in fish 3.1.0.

- Commands which involve `. ( ... | psub)` now work correctly, as a bug in the \ 
`function --on-job-exit` option has been fixed (#6613).
- Conflicts between upstream packages for ripgrep and bat, and the fish \ 
packages, have been resolved (#5822).
- Starting fish in a directory without read access, such as via `su`, no longer \ 
crashes (#6597).
- Glob ordering changes which were introduced in 3.1.0 have been reverted, \ 
returning the order of globs to the previous state (#6593).
- Redirections using the deprecated caret syntax to a file descriptor (eg \ 
`^&2`) work correctly (#6591).
- Redirections that append to a file descriptor (eg `2>>&1`) work \ 
correctly (#6614).
- Building fish on macOS (#6602) or with new versions of GCC (#6604, #6609) is \ 
now successful.
- `time` is now correctly listed in the output of `builtin -n`, and `time \ 
--help` works correctly (#6598).
- Exported universal variables now update properly (#6612).
- `status current-command` gives the expected output when used with an \ 
environment override - that is, `F=B status current-command` returns `status` \ 
instead of `F=B` (#6635).
- `test` no longer crashes when used with "`nan`" or "`inf`" \ 
arguments, erroring out instead (#6655).
- Copying from the end of the command line no longer crashes fish (#6680).
- `read` no longer removes multiple separators when splitting a variable into a \ 
list, restoring the previous behaviour from fish 3.0 and before (#6650).
- Functions using `--on-job-exit` and `--on-process-exit` work reliably again \ 
(#6679).
- Functions using `--on-signal INT` work reliably in interactive sessions, as \ 
they did in fish 2.7 and before (#6649). These handlers have never worked in \ 
non-interactive sessions, and making them work is an ongoing process.
- Functions using `--on-variable` work reliably with variables which are set \ 
implicitly (rather than with `set`), such as "`fish_bind_mode`" and \ 
"`PWD`" (#6653).
- 256 colors are properly enabled under certain conditions that were incorrectly \ 
detected in fish 3.1.0 (`$TERM` begins with xterm, does not include \ 
"`256color`", and `$TERM_PROGRAM` is not set) (#6701).
- The Mercurial (`hg`) prompt no longer produces an error when the current \ 
working directory is removed (#6699). Also, for performance reasons it shows \ 
only basic information by default; to restore the detailed status, set \ 
`$fish_prompt_hg_show_informative_status`.
- The VCS prompt, `fish_vcs_prompt`, no longer displays Subversion (`svn`) \ 
status by default, due to the potential slowness of this operation (#6681).
- Pasting of commands has been sped up (#6713).
- Using extended Unicode characters, such as emoji, in a non-Unicode capable \ 
locale (such as the `C` or `POSIX` locale) no longer renders all output blank \ 
(#6736).
- `help` prefers to use `xdg-open`, avoiding the use of `open` on Debian systems \ 
where this command is actually `openvt` (#6739).
- Command lines starting with a space, which are not saved in history, now do \ 
not get autosuggestions. This fixes an issue with Midnight Commander integration \ 
(#6763), but may be changed in a future version.
- Copying to the clipboard no longer inserts a newline at the end of the \ 
content, matching fish 2.7 and earlier (#6927).
- `fzf` in complex pipes no longer hangs. More generally, code run as part of \ 
command substitutions or `eval` will no longer have separate process groups. \ 
(#6624, #6806).

This release also includes:
- a number of changes to improve macOS compatibility with code signing and \ 
notarization;
- a number of improvements to completions; and
- a number of content and formatting improvements to the documentation.

If you are upgrading from version 3.0.0 or before, please also review the \ 
release notes for 3.1.0 and 3.1b1 (included below).

## Errata for fish 3.1

A new builtin, `time`, was introduced in the fish 3.1 releases. This builtin is \ 
a reserved word (like `test`, `function`, and others) because of the way it is \ 
implemented, and functions can no longer be named `time`. This was not clear in \ 
the fish 3.1b1 changelog.