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tool/gocross: use grep -E over egrep to avoid warning

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Recent egrep builds produce a warning:

```
egrep: warning: egrep is obsolescent; using grep -E
```

Updates #cleanup

Signed-off-by: James Tucker <james@tailscale.com>
This commit is contained in:
James Tucker 2023-03-28 17:44:39 -07:00 committed by James Tucker
parent a31e43f760
commit 8c2b755b2e
1 changed files with 1 additions and 1 deletions
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2
tool/gocross/gocross-wrapper.sh
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@ -31,7 +31,7 @@ toolchain="$HOME/.cache/tailscale-go"
if [ -d "$toolchain" ]; then
# A toolchain exists, but is it recent enough to compile gocross? If not,
# wipe it out so that the next if block fetches a usable one.
want_go_minor=$(egrep '^go ' "$repo_root/go.mod" | cut -f2 -d'.')
want_go_minor=$(grep -E '^go ' "$repo_root/go.mod" | cut -f2 -d'.')
have_go_minor=$(cut -f2 -d'.' <$toolchain/VERSION)
if [ -z "$have_go_minor" -o "$have_go_minor" -lt "$want_go_minor" ]; then
rm -rf "$toolchain" "$toolchain.extracted"