run.bash: enlarge timeout of runtime tests
Recently addition to runtime test makes it take very close to 720s
of timeout limit on the netbsd-arm-qemu builder.
R=golang-dev, go.peter.90, rsc
CC=golang-dev
https://golang.org/cl/10935043
diff --git a/src/run.bash b/src/run.bash
index e2ac2d7..0324634 100755
--- a/src/run.bash
+++ b/src/run.bash
@@ -49,7 +49,7 @@
echo
echo '# GOMAXPROCS=2 runtime -cpu=1,2,4'
-GOMAXPROCS=2 go test runtime -short -timeout=$(expr 240 \* $timeout_scale)s -cpu=1,2,4
+GOMAXPROCS=2 go test runtime -short -timeout=$(expr 300 \* $timeout_scale)s -cpu=1,2,4
echo
echo '# sync -cpu=10'