export GIT_PBUILDER_OPTIONS="--aptcache /var/cache/pbuilder/aptcache --othermirror 'deb [trusted=yes] file:/srv/repo/deb/$DIST/ml/1.1/ ./'"
-Apply the same procedure for the `build-pbuilder` script by editing build-pbuilder.settings:
+Apply the same procedure by editing `build-pbuilder.settings` which will be sourced by the `build-pbuilder` script:
export GIT_PBUILDER_OPTIONS="--aptcache /var/cache/pbuilder/aptcache --buildresult /srv/repo/deb/$DIST/ml/1.1/"