Error handling: Never output null as full_text (JSON), prefix messages with i3status (Thanks Artemis)

The former made i3bar crash, the latter is helpful for debugging.

1 files changed, 1 insertions, 1 deletions

diff --git a/src/print_ipv6_addr.c b/src/print_ipv6_addr.c
index f987b59..b7f668a 100644
--- a/src/print_ipv6_addr.c
+++ b/src/print_ipv6_addr.c
@@ -51,7 +51,7 @@ static char *get_sockname(struct addrinfo *addr) {
         if ((ret = getnameinfo((struct sockaddr*)&local, local_len,
                                buf, sizeof(buf), NULL, 0,
                                NI_NUMERICHOST)) != 0) {
-                fprintf(stderr, "getnameinfo(): %s\n", gai_strerror(ret));
+                fprintf(stderr, "i3status: getnameinfo(): %s\n", gai_strerror(ret));
                 (void)close(fd);
                 return NULL;
         }