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winwatch: always reflow when possible (thanks telephil9)

--- a/sys/src/cmd/winwatch.c

+++ b/sys/src/cmd/winwatch.c

@@ -185,19 +185,21 @@

 int

 geometry(void)

 {

-	int i, ncols, z;

+	int i, nrows, ncols, z;

 	Rectangle r;

 	z = 0;

-	rows = (Dy(screen->r)-2*MARGIN+PAD)/(font->height+PAD);

-	if(rows <= 0)

-		rows = 1;

-	if(rows*cols < nwin || rows*cols >= nwin*2){

-		ncols = nwin <= 0 ? 1 : (nwin+rows-1)/rows;

-		if(ncols != cols){

-			cols = ncols;

-			z = 1;

-		}

+	nrows = (Dy(screen->r)-2*MARGIN+PAD)/(font->height+PAD);

+	if(nrows <= 0)

+		nrows = 1;

+	if(nrows != rows){

+		rows = nrows;

+		z = 1;

+	}

+	ncols = nwin <= 0 ? 1 : (nwin+rows-1)/rows;

+	if(ncols != cols){

+		cols = ncols;

+		z = 1;

 	}

 	r = Rect(0,0,(Dx(screen->r)-2*MARGIN+PAD)/cols-PAD, font->height);