Update the comment about --enable-auto-import in the ld wrapper

wrappers/ld-wrapper.sh

@@ -6,7 +6,9 @@ export PATH=$DIR:$PATH
 if [ "$1" = "--help" ]; then
     cat<<EOF
 GNU ld impersonation
-We don't support --enable-auto-import, but libtool may look for this flag.
+We don't support the --enable-auto-import flag (it's enabled by default just
+like it is in GNU ld), but we do support the feature itself. Libtool may
+look for this flag.
 EOF
     exit 0
 fi