bisect--helper: plug strvec leak

The strvec "argv" is used to build a command for run_command_v_opt(),
but never freed.  Use a constant string array instead, which doesn't
require any cleanup.

Suggested-by: Ævar Arnfjörð Bjarmason <[email protected]>
Signed-off-by: René Scharfe <[email protected]>
Signed-off-by: Junio C Hamano <[email protected]>

Author: rscharfe

builtin/bisect--helper.c

@@ -764,11 +764,10 @@ static enum bisect_error bisect_start(struct bisect_terms *terms, const char **a
 		strbuf_read_file(&start_head, git_path_bisect_start(), 0);
 		strbuf_trim(&start_head);
 		if (!no_checkout) {
-			struct strvec argv = STRVEC_INIT;
+			const char *argv[] = { "checkout", start_head.buf,
+					       "--", NULL };
 
-			strvec_pushl(&argv, "checkout", start_head.buf,
-				     "--", NULL);
-			if (run_command_v_opt(argv.v, RUN_GIT_CMD)) {
+			if (run_command_v_opt(argv, RUN_GIT_CMD)) {
 				res = error(_("checking out '%s' failed."
 						 " Try 'git bisect start "
 						 "<valid-branch>'."),