fix a few nits in nix

Reference: /n/atom/patch/applied/nixnit20140227
Date: Thu Feb 27 20:57:32 CET 2014
Signed-off-by: quanstro@quanstro.net

--- /sys/src/nix/port/usbehci.c	Thu Feb 27 20:57:27 2014
+++ /sys/src/nix/port/usbehci.c	Thu Feb 27 20:57:27 2014
@@ -29,7 +29,7 @@
 #define ddqprint	if(ehcidebug>1 || (qh->io && qh->io->debug>1))print
 
 #define TRUNC(x, sz)	((x) & ((sz)-1))
-#define LPTR(q)		((ulong*)KADDR((q) & ~0x1F))
+#define LPTR(q)		((u32int*)KADDR((q) & ~0x1F))
 
 typedef struct Ctlio Ctlio;
 typedef union Ed Ed;
@@ -231,7 +231,7 @@
 	union{
 		Itd**	itdps;	/* itdps[i]: ptr to Itd for i-th frame or nil */
 		Sitd**	sitdps;	/* sitdps[i]: ptr to Sitd for i-th frame or nil */
-		ulong**	tdps;	/* same thing, as seen by hw */
+		u32int**	tdps;	/* same thing, as seen by hw */
 	};
 };
 
@@ -1129,7 +1129,7 @@
 	print(" nqhintr %d nisointr %d\n", ctlr->nqhintr, ctlr->nisointr);
 	print("\tcmd %#ux sts %#ux intr %#ux frno %ud",
 		opio->cmd, opio->sts, opio->intr, opio->frno);
-	print(" base %#ux link %#ux fr0 %#lux\n",
+	print(" base %#ux link %#ux fr0 %#ux\n",
 		opio->frbase, opio->link, ctlr->frames[0]);
 	se = buf+sizeof(buf);
 	s = seprint(buf, se, "\t");
@@ -2984,7 +2984,7 @@
 cancelisoio(Ctlr *ctlr, Isoio *iso, int pollival, ulong load)
 {
 	int frno, i, n, t, w, woff;
-	ulong *lp, *tp;
+	u32int *lp, *tp;
 	Isoio **il;
 	Itd *td;
 	Sitd *std;
--- /sys/src/nix/port/drawalloc.c	Thu Feb 27 20:57:27 2014
+++ /sys/src/nix/port/drawalloc.c	Thu Feb 27 20:57:27 2014
@@ -20,9 +20,10 @@
 int
 Rfmt(Fmt *f)
 {
-	extern int fmtR(Fmt*);
+	Rectangle r;
 
-	return fmtR(f);
+	r = va_arg(f->args, Rectangle);
+	return fmtprint(f, "[%d %d] [%d %d]", r.min.x, r.min.y, r.max.x, r.max.y);
 }
 
 void