[dev.cc] cmd/internal/obj/arm: delete trailing space from AND instruction

The tools have been fixed to not do this, but verifyAsm depends on this
being fixed.

TBR=rsc

Change-Id: Ia8968cc803b3498dfa2f98188c6ed1cf2e11c66d
Reviewed-on: https://go-review.googlesource.com/4962Reviewed-by: Rob Pike <r@golang.org>

src/cmd/internal/obj/arm/anames5.go

@@ -20,7 +20,7 @@ var Anames = []string{
 	"USEFIELD",
 	"VARDEF",
 	"VARKILL",
-	"AND ",
+	"AND",
 	"EOR",
 	"SUB",
 	"RSB",