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/test/fixedbugs/bug082.go b/test/fixedbugs/bug082.go
index 12a2da0..8353ec20 100644
--- a/test/fixedbugs/bug082.go
+++ b/test/fixedbugs/bug082.go
@@ -4,15 +4,18 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-package main	
- 	
+package main
+
 func main() {
-	x := 0;
-	x = ^x;  // unary ^ not yet implemented
-	if x != ^0 { panic(x, " ", ^0) }
+	x := 0
+	x = ^x // unary ^ not yet implemented
+	if x != ^0 {
+		println(x, " ", ^0)
+		panic("fail")
+	}
 }
 
 /*
-uetli:~/Source/go/test/bugs gri$ 6g bug082.go 
+uetli:~/Source/go/test/bugs gri$ 6g bug082.go
 bug082.go:7: fatal error: optoas: no entry COM-<int32>INT32
 */