use xmemdupz() to allocate copies of strings given by start and length

Use xmemdupz() to allocate the memory, copy the data and make sure to
NUL-terminate the result, all in one step.  The resulting code is
shorter, doesn't contain the constants 1 and '\0', and avoids
duplicating function parameters.

For blame, the last copied byte (o->file.ptr[o->file.size]) is always
set to NUL by fake_working_tree_commit() or read_sha1_file(), so no
information is lost by the conversion to using xmemdupz().

Signed-off-by: Rene Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

1 files changed, 1 insertions, 3 deletions

diff --git a/connect.c b/connect.c
index a983d061a9..ebc3a5be7d 100644
--- a/connect.c
+++ b/connect.c
@@ -64,9 +64,7 @@ static void parse_one_symref_info(struct string_list *symref, const char *val, i
 	if (!len)
 		return; /* just "symref" */
 	/* e.g. "symref=HEAD:refs/heads/master" */
-	sym = xmalloc(len + 1);
-	memcpy(sym, val, len);
-	sym[len] = '\0';
+	sym = xmemdupz(val, len);
 	target = strchr(sym, ':');
 	if (!target)
 		/* just "symref=something" */