ci: maybe fix --debug patching on all platforms

It seems `sed -i` is not very portable. Initially we were using this
command:

    sed -i '' '/.-d., .--debug.,/s/$/ default=True,/' qutebrowser/qutebrowser.py

and then that started breaking on windows, I'm not sure why, with "can't
read /.-d., .--debug.,/s/$/ default=True,/: No such file or directory".
Then we changed to:

    sed -i '/.-d., .--debug.,/s/$/ default=True,/' qutebrowser/qutebrowser.py

so without the extension argument, but that broke on mac with "1:
"qutebrowser/qutebrowser.py": extra characters at the end of q command"

then we tried:

    sed -i'' '/.-d., .--debug.,/s/$/ default=True,/' qutebrowser/qutebrowser.py

and that also broke on mac with the same error. On the recommendation of
stackoverflow I just changed it no not use in-place editing and do a
good old fashioned move afterwards. https://unix.stackexchange.com/questions/92895/how-can-i-achieve-portability-with-sed-i-in-place-editing

1 files changed, 2 insertions, 1 deletions

diff --git a/.github/workflows/nightly.yml b/.github/workflows/nightly.yml
index 400d65559..a78590de9 100644
--- a/.github/workflows/nightly.yml
+++ b/.github/workflows/nightly.yml
@@ -59,7 +59,8 @@ jobs:
       - name: Patch qutebrowser for debugging
         if: "contains(matrix.args, '--debug')"
         run: |
-          sed -i'' '/.-d., .--debug.,/s/$/ default=True,/' qutebrowser/qutebrowser.py
+          sed '/.-d., .--debug.,/s/$/ default=True,/' qutebrowser/qutebrowser.py > qutebrowser/qutebrowser.py.tmp
+          mv qutebrowser/qutebrowser.py.tmp qutebrowser/qutebrowser.py
       - name: Run tox
         run: "tox -e ${{ matrix.toxenv }} -- --gh-token ${{ secrets.GITHUB_TOKEN }} ${{ matrix.args }}"
       - name: Gather info