[PATCH 3/6] do not discard const: adjust to non-const data types

[Michael J Gruber <git@grubix.eu>]

We use data types (such as string_list's util member) which are not
necessarily "non-const in practice" (such as the list of environment
variables in run-command.c) but are not declared "const". Rather than
duplicating data types (e.g. with a new constr_string_list), discard the
const explicitly for now to quell ISOC23 warnings.
---
 http-push.c   | 2 +-
 run-command.c | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/http-push.c b/http-push.c
index 9ae6062198..acc7f1d8fa 100644
--- a/http-push.c
+++ b/http-push.c
@@ -1772,7 +1772,7 @@ int cmd_main(int argc, const char **argv)
 			str_end_url_with_slash(arg, &repo->url);
 			repo->path_len = strlen(repo->url);
 			if (path) {
-				repo->path = strchr(path+2, '/');
+				repo->path = (char *) strchr(path+2, '/');
 				if (repo->path)
 					repo->path_len = strlen(repo->path);
 			}
diff --git a/run-command.c b/run-command.c
index 32c290ee6a..1db02ef030 100644
--- a/run-command.c
+++ b/run-command.c
@@ -604,7 +604,7 @@ static void trace_add_env(struct strbuf *dst, const char *const *deltaenv)
 	/* Last one wins, see run-command.c:prep_childenv() for context */
 	for (e = deltaenv; e && *e; e++) {
 		struct strbuf key = STRBUF_INIT;
-		char *equals = strchr(*e, '=');
+		char *equals = (char *) strchr(*e, '=');
 
 		if (equals) {
 			strbuf_add(&key, *e, equals - *e);
-- 
2.53.0.1195.g771ffcb452