give "nbuf" strbuf a more meaningful name

It's a common pattern in our code to read paths from stdin,
separated either by newlines or NULs, and unquote as
necessary. In each of these five cases we use "nbuf" to
temporarily store the unquoted value. Let's give it the more
meaningful name "unquoted", which makes it easier to
understand the purpose of the variable.

While we're at it, let's also static-initialize all of our
strbufs. It's not wrong to call strbuf_init, but it
increases the cognitive load on the reader, who might wonder
"do we sometimes avoid initializing them?  why?".

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

1 files changed, 6 insertions, 7 deletions

diff --git a/builtin/check-ignore.c b/builtin/check-ignore.c
index 4f0b09e2db..1d73d3ca3d 100644
--- a/builtin/check-ignore.c
+++ b/builtin/check-ignore.c
@@ -115,20 +115,19 @@ static int check_ignore(struct dir_struct *dir,
 
 static int check_ignore_stdin_paths(struct dir_struct *dir, const char *prefix)
 {
-	struct strbuf buf, nbuf;
+	struct strbuf buf = STRBUF_INIT;
+	struct strbuf unquoted = STRBUF_INIT;
 	char *pathspec[2] = { NULL, NULL };
 	strbuf_getline_fn getline_fn;
 	int num_ignored = 0;
 
 	getline_fn = nul_term_line ? strbuf_getline_nul : strbuf_getline_lf;
-	strbuf_init(&buf, 0);
-	strbuf_init(&nbuf, 0);
 	while (getline_fn(&buf, stdin) != EOF) {
 		if (!nul_term_line && buf.buf[0] == '"') {
-			strbuf_reset(&nbuf);
-			if (unquote_c_style(&nbuf, buf.buf, NULL))
+			strbuf_reset(&unquoted);
+			if (unquote_c_style(&unquoted, buf.buf, NULL))
 				die("line is badly quoted");
-			strbuf_swap(&buf, &nbuf);
+			strbuf_swap(&buf, &unquoted);
 		}
 		pathspec[0] = buf.buf;
 		num_ignored += check_ignore(dir, prefix,
@@ -136,7 +135,7 @@ static int check_ignore_stdin_paths(struct dir_struct *dir, const char *prefix)
 		maybe_flush_or_die(stdout, "check-ignore to stdout");
 	}
 	strbuf_release(&buf);
-	strbuf_release(&nbuf);
+	strbuf_release(&unquoted);
 	return num_ignored;
 }