use strbuf_addstr() for adding constant strings to a strbuf, part 2

Replace uses of strbuf_addf() for adding strings with more lightweight
strbuf_addstr() calls.  This makes the intent clearer and avoids
potential issues with printf format specifiers.

02962d3684 already converted six cases,
this patch covers eleven more.

A semantic patch for Coccinelle is included for easier checking for
new cases that might be introduced in the future.

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

builtin/fmt-merge-msg.c

@@ -395,7 +395,7 @@ static void shortlog(const char *name,
 
 	for (i = 0; i < subjects.nr; i++)
 		if (i >= limit)
-			strbuf_addf(out, "  ...\n");
+			strbuf_addstr(out, "  ...\n");
 		else
 			strbuf_addf(out, "  %s\n", subjects.items[i].string);
 

builtin/merge.c

@@ -940,7 +940,7 @@ static void write_merge_state(struct commit_list *remoteheads)
 
 	strbuf_reset(&buf);
 	if (fast_forward == FF_NO)
-		strbuf_addf(&buf, "no-ff");
+		strbuf_addstr(&buf, "no-ff");
 	write_file_buf(git_path_merge_mode(), buf.buf, buf.len);
 }
 

builtin/submodule--helper.c

@@ -749,8 +749,9 @@ static int update_clone_get_next_task(struct child_process *child,
 		ce = suc->failed_clones[index];
 		if (!prepare_to_clone_next_submodule(ce, child, suc, err)) {
 			suc->current ++;
-			strbuf_addf(err, "BUG: submodule considered for cloning,"
-				    "doesn't need cloning any more?\n");
+			strbuf_addstr(err, "BUG: submodule considered for "
+					   "cloning, doesn't need cloning "
+					   "any more?\n");
 			return 0;
 		}
 		p = xmalloc(sizeof(*p));

contrib/coccinelle/strbuf.cocci

@@ -0,0 +1,5 @@
+@@
+expression E1, E2;
+@@
+- strbuf_addf(E1, E2);
++ strbuf_addstr(E1, E2);

merge-recursive.c

@@ -206,7 +206,7 @@ static void output_commit_title(struct merge_options *o, struct commit *commit)
 			find_unique_abbrev(commit->object.oid.hash,
 				DEFAULT_ABBREV));
 		if (parse_commit(commit) != 0)
-			strbuf_addf(&o->obuf, _("(bad commit)\n"));
+			strbuf_addstr(&o->obuf, _("(bad commit)\n"));
 		else {
 			const char *title;
 			const char *msg = get_commit_buffer(commit, NULL);

remote.c

@@ -2073,7 +2073,7 @@ int format_tracking_info(struct branch *branch, struct strbuf *sb)
 			_("Your branch is based on '%s', but the upstream is gone.\n"),
 			base);
 		if (advice_status_hints)
-			strbuf_addf(sb,
+			strbuf_addstr(sb,
 				_("  (use \"git branch --unset-upstream\" to fixup)\n"));
 	} else if (!ours && !theirs) {
 		strbuf_addf(sb,
@@ -2086,7 +2086,7 @@ int format_tracking_info(struct branch *branch, struct strbuf *sb)
 			   ours),
 			base, ours);
 		if (advice_status_hints)
-			strbuf_addf(sb,
+			strbuf_addstr(sb,
 				_("  (use \"git push\" to publish your local commits)\n"));
 	} else if (!ours) {
 		strbuf_addf(sb,
@@ -2097,7 +2097,7 @@ int format_tracking_info(struct branch *branch, struct strbuf *sb)
 			   theirs),
 			base, theirs);
 		if (advice_status_hints)
-			strbuf_addf(sb,
+			strbuf_addstr(sb,
 				_("  (use \"git pull\" to update your local branch)\n"));
 	} else {
 		strbuf_addf(sb,
@@ -2110,7 +2110,7 @@ int format_tracking_info(struct branch *branch, struct strbuf *sb)
 			   ours + theirs),
 			base, ours, theirs);
 		if (advice_status_hints)
-			strbuf_addf(sb,
+			strbuf_addstr(sb,
 				_("  (use \"git pull\" to merge the remote branch into yours)\n"));
 	}
 	free(base);

wt-status.c

@@ -367,11 +367,11 @@ static void wt_status_print_change_data(struct wt_status *s,
 		if (d->new_submodule_commits || d->dirty_submodule) {
 			strbuf_addstr(&extra, " (");
 			if (d->new_submodule_commits)
-				strbuf_addf(&extra, _("new commits, "));
+				strbuf_addstr(&extra, _("new commits, "));
 			if (d->dirty_submodule & DIRTY_SUBMODULE_MODIFIED)
-				strbuf_addf(&extra, _("modified content, "));
+				strbuf_addstr(&extra, _("modified content, "));
 			if (d->dirty_submodule & DIRTY_SUBMODULE_UNTRACKED)
-				strbuf_addf(&extra, _("untracked content, "));
+				strbuf_addstr(&extra, _("untracked content, "));
 			strbuf_setlen(&extra, extra.len - 2);
 			strbuf_addch(&extra, ')');
 		}