Merge branch 'cf/c23-const-preserving-strchr-updates-0'

ISO C23 redefines strchr and friends that tradiotionally took
a const pointer and returned a non-const pointer derived from it to
preserve constness (i.e., if you ask for a substring in a const
string, you get a const pointer to the substring).  Update code
paths that used non-const pointer to receive their results that did
not have to be non-const to adjust.

* cf/c23-const-preserving-strchr-updates-0:
  gpg-interface: remove an unnecessary NULL initialization
  global: constify some pointers that are not written to

1 files changed, 2 insertions, 2 deletions

diff --git a/diff.c b/diff.c
index 452fc69775..35b903a9a0 100644
--- a/diff.c
+++ b/diff.c
@@ -1961,7 +1961,7 @@ static int fn_out_diff_words_write_helper(struct diff_options *o,
 	struct strbuf sb = STRBUF_INIT;
 
 	while (count) {
-		char *p = memchr(buf, '\n', count);
+		const char *p = memchr(buf, '\n', count);
 		if (print)
 			strbuf_addstr(&sb, diff_line_prefix(o));
 
@@ -3044,7 +3044,7 @@ static long gather_dirstat(struct diff_options *opt, struct dirstat_dir *dir,
 		struct dirstat_file *f = dir->files;
 		int namelen = strlen(f->name);
 		unsigned long changes;
-		char *slash;
+		const char *slash;
 
 		if (namelen < baselen)
 			break;