strbuf: use strbuf_addchars() for adding a char multiple times

Signed-off-by: Rene Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

graph.c

@@ -1145,7 +1145,7 @@ int graph_next_line(struct git_graph *graph, struct strbuf *sb)
 
 static void graph_padding_line(struct git_graph *graph, struct strbuf *sb)
 {
-	int i, j;
+	int i;
 
 	if (graph->state != GRAPH_COMMIT) {
 		graph_next_line(graph, sb);
@@ -1169,8 +1169,7 @@ static void graph_padding_line(struct git_graph *graph, struct strbuf *sb)
 				strbuf_addch(sb, ' ');
 			else {
 				int num_spaces = ((graph->num_parents - 2) * 2);
-				for (j = 0; j < num_spaces; j++)
-					strbuf_addch(sb, ' ');
+				strbuf_addchars(sb, ' ', num_spaces);
 			}
 		} else {
 			strbuf_write_column(sb, col, '|');

merge-recursive.c

@@ -163,9 +163,7 @@ static void output(struct merge_options *o, int v, const char *fmt, ...)
 	if (!show(o, v))
 		return;
 
-	strbuf_grow(&o->obuf, o->call_depth * 2 + 2);
-	memset(o->obuf.buf + o->obuf.len, ' ', o->call_depth * 2);
-	strbuf_setlen(&o->obuf, o->obuf.len + o->call_depth * 2);
+	strbuf_addchars(&o->obuf, ' ', o->call_depth * 2);
 
 	va_start(ap, fmt);
 	strbuf_vaddf(&o->obuf, fmt, ap);

pretty.c

@@ -1400,9 +1400,7 @@ static size_t format_and_pad_commit(struct strbuf *sb, /* in UTF-8 */
 		 * convert it back to chars
 		 */
 		padding = padding - len + local_sb.len;
-		strbuf_grow(sb, padding);
-		strbuf_setlen(sb, sb_len + padding);
-		memset(sb->buf + sb_len, ' ', sb->len - sb_len);
+		strbuf_addchars(sb, ' ', padding);
 		memcpy(sb->buf + sb_len + offset, local_sb.buf,
 		       local_sb.len);
 	}
@@ -1679,10 +1677,8 @@ void pp_remainder(struct pretty_print_context *pp,
 		first = 0;
 
 		strbuf_grow(sb, linelen + indent + 20);
-		if (indent) {
-			memset(sb->buf + sb->len, ' ', indent);
-			strbuf_setlen(sb, sb->len + indent);
-		}
+		if (indent)
+			strbuf_addchars(sb, ' ', indent);
 		strbuf_add(sb, line, linelen);
 		strbuf_addch(sb, '\n');
 	}