build-gnu: replace timeout for tests/tail/follow-stdin.sh

* `tests/tail-2/follow-stdin.sh` will hang undefinedly if uu_timeout
is used

Author: jhscheer

util/build-gnu.sh

@@ -132,6 +132,7 @@ sed -i 's|touch |/usr/bin/touch |' tests/cp/preserve-link.sh tests/cp/reflink-pe
 sed -i 's|ln -|/usr/bin/ln -|' tests/cp/link-deref.sh
 sed -i 's|cp |/usr/bin/cp |' tests/mv/hard-2.sh
 sed -i 's|paste |/usr/bin/paste |' tests/misc/od-endian.sh
+sed -i 's|timeout |/usr/bin/timeout |' tests/tail-2/follow-stdin.sh
 
 # Add specific timeout to tests that currently hang to limit time spent waiting
 sed -i 's|\(^\s*\)seq \$|\1/usr/bin/timeout 0.1 seq \$|' tests/misc/seq-precision.sh tests/misc/seq-long-double.sh