graph: use strbuf_addchars() to add spaces

strbuf_addf() can be used to add a specific number of space characters
by using the format "%*s" with an empty string and specifying the
desired width.  Use strbuf_addchars() instead as it's shorter, makes the
intent clearer and is a bit more efficient.

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

diff --git a/graph.c b/graph.c
index e7e20650da6983ada7c94c22aea7ecaec41c5c17..e1f6d3bddb38aadd4e439aea30f542d286ecb98e 100644 (file)
--- a/graph.c
+++ b/graph.c
@@ -696,12 +696,8 @@ static void graph_pad_horizontally(struct git_graph *graph, struct strbuf *sb,
         * This way, fields printed to the right of the graph will remain
         * aligned for the entire commit.
         */
-       int extra;
-       if (chars_written >= graph->width)
-               return;
-
-       extra = graph->width - chars_written;
-       strbuf_addf(sb, "%*s", (int) extra, "");
+       if (chars_written < graph->width)
+               strbuf_addchars(sb, ' ', graph->width - chars_written);
 }
 
 static void graph_output_padding_line(struct git_graph *graph,
@@ -787,7 +783,7 @@ static void graph_output_pre_commit_line(struct git_graph *graph,
                if (col->commit == graph->commit) {
                        seen_this = 1;
                        strbuf_write_column(sb, col, '|');
-                       strbuf_addf(sb, "%*s", graph->expansion_row, "");
+                       strbuf_addchars(sb, ' ', graph->expansion_row);
                        chars_written += 1 + graph->expansion_row;
                } else if (seen_this && (graph->expansion_row == 0)) {
                        /*