Merge branch 'rs/cocci'

Code clean-up with help from coccinelle tool continues.

* rs/cocci:
  coccicheck: make transformation for strbuf_addf(sb, "...") more precise
  use strbuf_add_unique_abbrev() for adding short hashes, part 2
  use strbuf_addstr() instead of strbuf_addf() with "%s", part 2
  gitignore: ignore output files of coccicheck make target

wt-status.c

@@ -1383,8 +1383,7 @@ static int grab_1st_switch(unsigned char *osha1, unsigned char *nsha1,
 	if (!strcmp(cb->buf.buf, "HEAD")) {
 		/* HEAD is relative. Resolve it to the right reflog entry. */
 		strbuf_reset(&cb->buf);
-		strbuf_addstr(&cb->buf,
-			      find_unique_abbrev(nsha1, DEFAULT_ABBREV));
+		strbuf_add_unique_abbrev(&cb->buf, nsha1, DEFAULT_ABBREV);
 	}
 	return 1;
 }