Permissions on build log

src/freedombone-ci

@@ -205,10 +205,9 @@ fi
 
 build_log_filename="${web_dir}/buildlog_${PROJECT_NAME}-${targetstr}.txt"
 
-# remove any existing build log
-if [ -f "$build_log_filename" ]; then
-    rm "$build_log_filename"
-fi
+echo 'No build results yet' > "$build_log_filename"
+chmod 755 "$build_log_filename"
+chown www-data:www-data "$build_log_filename"
 
 # install from the source directory
 cd "${source_directory}" || exit 1