mothra: treat <div> as <p>

sys/src/cmd/mothra/html.h

@@ -136,6 +136,7 @@ enum{
 	Tag_cite,
 	Tag_code,
 	Tag_dd,
+	Tag_div,
 	Tag_dfn,
 	Tag_dir,
 	Tag_dl,

sys/src/cmd/mothra/html.syntax.c

@@ -25,6 +25,7 @@ Tag tag[]={
 [Tag_dd]	"dd",		NOEND,	/* OPTEND */
 [Tag_dfn]	"dfn",		END,
 [Tag_dir]	"dir",		END,
+[Tag_div]	"div",	NOEND,	/* OPTEND */
 [Tag_dl]	"dl",		END,
 [Tag_dt]	"dt",		NOEND,	/* OPTEND */
 [Tag_em]	"em",		END,

sys/src/cmd/mothra/rdhtml.c

@@ -910,6 +910,7 @@ void plrdhtml(char *name, int fd, Www *dst){
 				break;
 			}
 			break;
+		case Tag_div:
 		case Tag_p:
 			pl_linespace(&g);
 			g.linebrk=1;