strbuf: add and use strbuf_insertstr()

Add a function for inserting a C string into a strbuf.  Use it
throughout the source to get rid of magic string length constants and
explicit strlen() calls.

Like strbuf_addstr(), implement it as an inline function to avoid the
implicit strlen() calls to cause runtime overhead.

Helped-by: Taylor Blau <me@ttaylorr.com>
Helped-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/notes.c b/notes.c
index 0c79964c26..a24af53de6 100644
--- a/notes.c
+++ b/notes.c
@@ -1332,9 +1332,9 @@ void expand_notes_ref(struct strbuf *sb)
 	if (starts_with(sb->buf, "refs/notes/"))
 		return; /* we're happy */
 	else if (starts_with(sb->buf, "notes/"))
-		strbuf_insert(sb, 0, "refs/", 5);
+		strbuf_insertstr(sb, 0, "refs/");
 	else
-		strbuf_insert(sb, 0, "refs/notes/", 11);
+		strbuf_insertstr(sb, 0, "refs/notes/");
 }
 
 void expand_loose_notes_ref(struct strbuf *sb)