Fix incorrect quoting of quotes (the previous quotes had no effect beyond unquoting)

contrib/macdeploy/detached-sig-create.sh

@@ -40,7 +40,7 @@ grep CodeResources < "${TEMPLIST}" | while read i; do
   RESOURCE="${TEMPDIR}/${OUTROOT}/${TARGETFILE}"
   DIRNAME="`dirname "${RESOURCE}"`"
   mkdir -p "${DIRNAME}"
-  echo "Adding resource for: "${TARGETFILE}""
+  echo "Adding resource for: \"${TARGETFILE}\""
   cp "${i}" "${RESOURCE}"
 done