single argument panic on non-darwin and in comments

R=r
CC=golang-dev
https://golang.org/cl/800042

src/pkg/debug/proc/proc_linux.go

@@ -430,7 +430,7 @@ func (t *thread) wait() {
 		t.logTrace("beginning wait")
 		ev.Waitmsg, ev.err = os.Wait(t.tid, syscall.WALL)
 		if ev.err == nil && ev.Pid != t.tid {
-			panic("Wait returned pid ", ev.Pid, " wanted ", t.tid)
+			panic(fmt.Sprint("Wait returned pid ", ev.Pid, " wanted ", t.tid))
 		}
 		if ev.StopSignal() == syscall.SIGSTOP && t.ignoreNextSigstop {
 			// Spurious SIGSTOP.  See Thread.Stop().

src/pkg/debug/proc/regs_linux_386.go

@@ -92,7 +92,7 @@ func (r *_386Regs) Get(i int) Word {
 	case 15:
 		return Word(r.Gs)
 	}
-	panic("invalid register index ", strconv.Itoa(i))
+	panic("invalid register index " + strconv.Itoa(i))
 }
 
 func (r *_386Regs) Set(i int, val Word) os.Error {
@@ -130,7 +130,7 @@ func (r *_386Regs) Set(i int, val Word) os.Error {
 	case 15:
 		r.Gs = uint16(val)
 	default:
-		panic("invalid register index ", strconv.Itoa(i))
+		panic("invalid register index " + strconv.Itoa(i))
 	}
 	return r.setter(&r.PtraceRegs)
 }

src/pkg/debug/proc/regs_linux_amd64.go

@@ -124,7 +124,7 @@ func (r *amd64Regs) Get(i int) Word {
 	case 23:
 		return Word(r.Gs)
 	}
-	panic("invalid register index ", strconv.Itoa(i))
+	panic("invalid register index " + strconv.Itoa(i))
 }
 
 func (r *amd64Regs) Set(i int, val Word) os.Error {
@@ -178,7 +178,7 @@ func (r *amd64Regs) Set(i int, val Word) os.Error {
 	case 23:
 		r.Gs = uint64(val)
 	default:
-		panic("invalid register index ", strconv.Itoa(i))
+		panic("invalid register index " + strconv.Itoa(i))
 	}
 	return r.setter(&r.PtraceRegs)
 }

src/pkg/syscall/syscall_mingw.go

@@ -24,7 +24,7 @@ import (
 )
 
 func abort(funcname string, err int) {
-	panic(funcname+" failed: (", err, ") ", syscall.Errstr(err), "\n")
+	panic(funcname + " failed: " + syscall.Errstr(err))
 }
 
 func print_version(v uint32) {
@@ -77,7 +77,7 @@ func getprocaddress(handle uint32, procname uintptr) (proc uintptr)
 func loadDll(fname string) uint32 {
 	m := loadlibraryex(uintptr(unsafe.Pointer(StringBytePtr(fname))))
 	if m == 0 {
-		panic("syscall: could not LoadLibraryEx ", fname)
+		panic("syscall: could not LoadLibraryEx " + fname)
 	}
 	return m
 }
@@ -85,7 +85,7 @@ func loadDll(fname string) uint32 {
 func getSysProcAddr(m uint32, pname string) uintptr {
 	p := getprocaddress(m, uintptr(unsafe.Pointer(StringBytePtr(pname))))
 	if p == 0 {
-		panic("syscall: could not GetProcAddress for ", pname)
+		panic("syscall: could not GetProcAddress for " + pname)
 	}
 	return p
 }

src/pkg/websocket/client.go

@@ -74,14 +74,14 @@ func newClient(resourceName, host, origin, location, protocol string, rwc io.Rea
 	func main() {
 	 	ws, err := websocket.Dial("ws://localhost/ws", "", "http://localhost/");
 	 	if err != nil {
-			panic("Dial: ", err.String())
+			panic("Dial: " + err.String())
 		}
 		if _, err := ws.Write([]byte("hello, world!\n")); err != nil {
-			panic("Write: ", err.String())
+			panic("Write: " + err.String())
 		}
 		var msg = make([]byte, 512);
 		if n, err := ws.Read(msg); err != nil {
-			panic("Read: ", err.String())
+			panic("Read: " + err.String())
 		}
 		// use msg[0:n]
 	}

src/pkg/websocket/server.go

@@ -34,7 +34,7 @@ import (
 		http.Handle("/echo", websocket.Handler(EchoServer));
 		err := http.ListenAndServe(":12345", nil);
 		if err != nil {
-			panic("ListenAndServe: ", err.String())
+			panic("ListenAndServe: " + err.String())
 		}
 	}
 */