code changes for array conversion.

as a reminder, the old conversion
was that you could write

	var arr [10]byte;
	var slice []byte;
	slice = arr;

but now you have to write

	slice = &arr;

the change eliminates an implicit &, so that
the only implicit &s left are in the . operator
and in string(arr).

also, removed utf8.EncodeRuneToString
in favor of string(rune).

R=r
DELTA=83  (1 added, 23 deleted, 59 changed)
OCL=27531
CL=27534

1 files changed, 1 insertions, 1 deletions

diff --git a/doc/progs/cat.go b/doc/progs/cat.go
index c06a730ce..1f6c0f9df 100644
--- a/doc/progs/cat.go
+++ b/doc/progs/cat.go
@@ -15,7 +15,7 @@ func cat(f *file.File) {
 	const NBUF = 512;
 	var buf [NBUF]byte;
 	for {
-		switch nr, er := f.Read(buf); true {
+		switch nr, er := f.Read(&buf); true {
 		case nr < 0:
 			fmt.Fprintf(os.Stderr, "error reading from %s: %s\n", f.String(), er.String());
 			sys.Exit(1);