module: use strings.ContainsRune in fileNameOK

As suggested by Ian for similar code on CL 326010.

Change-Id: I7c6ca4191481daf253eba5f12e7079f5c3522e88
Reviewed-on: https://go-review.googlesource.com/c/mod/+/327029
Trust: Tobias Klauser <tobias.klauser@gmail.com>
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Bryan C. Mills <bcmills@google.com>
1 file changed
tree: e924cff60edcefcca770d1040d34138beb2c31af
  1. LICENSE
  2. PATENTS
  3. README.md
  4. codereview.cfg
  5. go.mod
  6. go.sum
  7. gosumcheck/
  8. internal/
  9. modfile/
  10. module/
  11. semver/
  12. sumdb/
  13. zip/
README.md

mod

PkgGoDev

This repository holds packages for writing tools that work directly with Go module mechanics. That is, it is for direct manipulation of Go modules themselves.

It is NOT about supporting general development tools that need to do things like load packages in module mode. That use case, where modules are incidental rather than the focus, should remain in x/tools, specifically x/tools/go/packages.

The specific case of loading packages should still be done by invoking the go command, which remains the single point of truth for package loading algorithms.