Merge branch 'ps/no-writable-strings' into jk/imap-send-plug-all-msgs-leak

* ps/no-writable-strings: (46 commits)
  config.mak.dev: enable `-Wwrite-strings` warning
  builtin/merge: always store allocated strings in `pull_twohead`
  builtin/rebase: always store allocated string in `options.strategy`
  builtin/rebase: do not assign default backend to non-constant field
  imap-send: fix leaking memory in `imap_server_conf`
  imap-send: drop global `imap_server_conf` variable
  mailmap: always store allocated strings in mailmap blob
  revision: always store allocated strings in output encoding
  remote-curl: avoid assigning string constant to non-const variable
  send-pack: always allocate receive status
  parse-options: cast long name for OPTION_ALIAS
  http: do not assign string constant to non-const field
  compat/win32: fix const-correctness with string constants
  pretty: add casts for decoration option pointers
  object-file: make `buf` parameter of `index_mem()` a constant
  object-file: mark cached object buffers as const
  ident: add casts for fallback name and GECOS
  entry: refactor how we remove items for delayed checkouts
  line-log: always allocate the output prefix
  line-log: stop assigning string constant to file parent buffer
  ...

1 files changed, 2 insertions, 2 deletions

diff --git a/t/helper/test-regex.c b/t/helper/test-regex.c
index 80042eafc2..366bd70976 100644
--- a/t/helper/test-regex.c
+++ b/t/helper/test-regex.c
@@ -20,8 +20,8 @@ static struct reg_flag reg_flags[] = {
 
 static int test_regex_bug(void)
 {
-	char *pat = "[^={} \t]+";
-	char *str = "={}\nfred";
+	const char *pat = "[^={} \t]+";
+	const char *str = "={}\nfred";
 	regex_t r;
 	regmatch_t m[1];