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sam: revert showdata crap

--- a/sys/src/cmd/samterm/plan9.c

+++ b/sys/src/cmd/samterm/plan9.c

@@ -184,8 +184,8 @@

 plumbformat(int i)

 {

 	Plumbmsg *m;

-	char *addr, *data, *act, *s;

-	int n, replaced;

+	char *addr, *data, *act;

+	int n;

 	data = (char*)plumbbuf[i].data;

 	m = plumbunpack(data, plumbbuf[i].n);

@@ -197,36 +197,6 @@

 		return 0;

 	}

 	act = plumblookup(m->attr, "action");

-

-	if(act != nil && strcmp(act, "showdata") == 0){

-		addr = plumblookup(m->attr, "filename");

-		n = sprint(data, "B \n");

-		if(addr != nil)

-			n += sprint(data+n, "f %s\n", addr);

-		n += sprint(data+n, "c\n");

-		s = memmove(data+n, m->data, m->ndata);

-		s--;

-		n += m->ndata;

-		if(data[n-1] != '\n')

-			data[n++] = '\n';

-		data[n] = 0;

-		replaced = 0;

-		for(;;){

-			s = strstr(s, "\n.\n");

-			if(s == nil)

-				break;

-			s[1] = '';

-			s += 2;

-			replaced = 1;

-		}

-		n += sprint(data+n, ".\n");

-		if(replaced)

-			n += sprint(data+n, ",s/^$/./g\n");

-		plumbbuf[i].n = n;

-		plumbfree(m);

-		return 1;

-	}

-

 	if(act!=nil && strcmp(act, "showfile")!=0){

 		/* can't handle other cases yet */

 		plumbfree(m);