Merge #322: Fix macOS hwi-qt build

57633c6 Fix macOS hwi-qt build (benk10)

Pull request description:

  Fix `sed` command used in the `contrib/generate-ui.sh` script for generating the `hwi-qt` build.

  The current build exists in the [release](https://github.com/bitcoin-core/HWI/releases/tag/1.1.0) is broken on macOS, generating a new one with this fix should solve the issue.

ACKs for top commit:
  instagibbs:
    tACK on Mac 57633c6

Tree-SHA512: d581aa2e19f1ef1cb608db7e50b765b1bfde5d5e14d673c14944c8d26e635be6fcc0a6b64ca1b38468998d01e743d804dfe5944dcdade203d0733f18ee532110

contrib/generate-ui.sh

@@ -5,6 +5,6 @@ for file in *.ui
 do
     gen_file=ui_`echo $file| cut -d. -f1`.py
     pyside2-uic $file -o $gen_file
-    sed -i 's/raise()/raise_()/g' $gen_file
+    sed -i '' -e 's/raise()/raise_()/g' $gen_file
 done
 popd