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Bryan C. Mills 3580ef9d64 os/exec: on Windows, suppress ErrDot if the implicit path matches the explicit one
If the current directory is also listed explicitly in %PATH%,
this changes the behavior of LookPath to prefer the explicit name for it
(and thereby avoid ErrDot).

However, in order to avoid running a different executable from what
would have been run by previous Go versions, we still return the
implicit path (and ErrDot) if it refers to a different file entirely.

Fixes #53536.
Updates #43724.

Change-Id: I7ab01074e21a0e8b07a176e3bc6d3b8cf0c873cd
Reviewed-on: https://go-review.googlesource.com/c/go/+/414054
Reviewed-by: Russ Cox <rsc@golang.org>
Run-TryBot: Bryan Mills <bcmills@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Alex Brainman <alex.brainman@gmail.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
2022-06-28 19:29:51 +00:00
.github .github: remove duplicate security link 2022-01-07 17:55:09 +00:00
api api: correct debug/pe issue number for Go 1.19 changes 2022-06-28 13:01:41 +00:00
doc doc/go1.19: Linux race detector now requires glibc 2.17 2022-06-24 00:37:46 +00:00
lib/time lib/time, time/tzdata: update to 2022a 2022-05-31 08:53:53 +00:00
misc cmd/go: prepend builtin prolog when checking for preamble errors 2022-06-25 19:07:01 +00:00
src os/exec: on Windows, suppress ErrDot if the implicit path matches the explicit one 2022-06-28 19:29:51 +00:00
test cmd/compile: fix generic inter-inter comparisons from value switch statements 2022-06-28 18:38:57 +00:00
.gitattributes all: treat all files as binary, but check in .bat with CRLF 2020-06-08 15:31:43 +00:00
.gitignore internal/buildcfg: move build configuration out of cmd/internal/objabi 2021-04-16 19:20:53 +00:00
AUTHORS A+C: add Jinzhu Zhang 2022-05-08 17:28:26 +00:00
codereview.cfg codereview.cfg: add codereview.cfg for master branch 2021-02-19 18:44:53 +00:00
CONTRIBUTING.md all: restore changes from faulty merge/revert 2018-02-12 20:13:59 +00:00
CONTRIBUTORS A+C: add Jinzhu Zhang 2022-05-08 17:28:26 +00:00
LICENSE
PATENTS
README.md README.md: update wiki link 2022-04-26 16:21:18 +00:00
SECURITY.md SECURITY.md: replace golang.org with go.dev 2022-04-26 19:59:47 +00:00

The Go Programming Language

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