single argument panic
note that sortmain.go has been run through hg gofmt;
only the formatting of the day initializers changed.
i'm happy to revert that formatting if you'd prefer.
stop on error in doc/progs/run
R=r
CC=golang-dev
https://golang.org/cl/850041
diff --git a/doc/progs/run b/doc/progs/run
index c0e4b53..07bc141 100755
--- a/doc/progs/run
+++ b/doc/progs/run
@@ -3,6 +3,8 @@
# Use of this source code is governed by a BSD-style
# license that can be found in the LICENSE file.
+set -e
+
GOBIN="${GOBIN:-$HOME/bin}"
. "$GOROOT"/src/Make.$GOARCH
