tools/resolve_btfids: Fix some error messages

Add missing newlines and fix polarity of strerror argument. Signed-off-by: Brendan Jackman <jackmanb@google.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Jiri Olsa <jolsa@redhat.com> Link: https://lore.kernel.org/bpf/20201203102234.648540-1-jackmanb@google.com

Author: bjackman

tools/bpf/resolve_btfids/main.c

@@ -454,7 +454,7 @@ static int symbols_collect(struct object *obj)
 return -ENOMEM;
 
 if (id->addr_cnt >= ADDR_CNT) {
-pr_err("FAILED symbol %s crossed the number of allowed lists",
+pr_err("FAILED symbol %s crossed the number of allowed lists\n",
 id->name);
 return -1;
 }
@@ -477,8 +477,8 @@ static int symbols_resolve(struct object *obj)
 btf = btf__parse(obj->btf ?: obj->path, NULL);
 err = libbpf_get_error(btf);
 if (err) {
-pr_err("FAILED: load BTF from %s: %s",
-obj->path, strerror(err));
+pr_err("FAILED: load BTF from %s: %s\n",
+obj->path, strerror(-err));
 return -1;
 }