shithub: vdiff

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fix tab printing (thanks qwx)

--- a/vdiff.c

+++ b/vdiff.c

@@ -69,8 +69,8 @@

 	draw(screen, r, cols[l->t].bg, nil, ZP);

 	p = Pt(r.min.x + Hpadding, r.min.y + (Dy(r)-font->height)/2);

 	off = Δpan / stringwidth(font, " ");

-	for(s = l->s, nc = 0, tab = 0; *s; nc++, tab--, off--){

-		if(*s == '\t'){

+	for(s = l->s, nc = -1, tab = 0; *s; nc++, tab--, off--){

+		if(tab <= 0 && *s == '\t'){

 			tab = 4 - nc % 4;

 			s++;

 		}