fix: sed POSIX compatibility

Author: jaybuidl

contracts/scripts/docPreprocess.sh

@@ -6,9 +6,9 @@ SCRIPT_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null 2>&1 && pwd )"
 # Known issue: https://github.com/foundry-rs/foundry/issues/4118
 for tag in authors reviewers auditors bounties deployments tools
 do
-    find $SCRIPT_DIR/../src/ -type f -name '*.sol' | xargs sed -i '' "/^.*@$tag.*$/d"
+    find $SCRIPT_DIR/../src/ -type f -name '*.sol' | xargs sed -i.bak "/^.*@$tag.*$/d"
 done
 
-echo "Use 'git restore src/' to revert the changes"
+echo "Use 'git restore src/ && rm src/**/*.sol.bak' to revert the changes"