chan_iax2: Fix spacing in netstats command

The iax2 show netstats command previously didn't contain
enough spacing in the header to properly align the table
header with the table body. This caused column headers
to not align with the values on longer channel names.

Some spacing is added to account for the longest channel
names that display (before truncation occurs) so that
columns are always properly aligned.

ASTERISK-29895 #close
patches:
  61205_misaligned2.patch submitted by Birger Harzenetter (license 5870)

Change-Id: I450ce6bb81157b9d6d149007e53b749f237b6d9f

channels/chan_iax2.c

@@ -7503,7 +7503,7 @@ static int ast_cli_netstats(struct mansession *s, int fd, int limit_fmt)
 	int numchans = 0;
 	char first_message[10] = { 0, };
 	char last_message[10] = { 0, };
-#define ACN_FORMAT1 "%-20.25s %4u %4d %4d %5d %3d %5d %4d %6d %4d %4d %5d %3d %5d %4d %6d %s%s %4s%s\n"
+#define ACN_FORMAT1 "%-24.25s %4u %4d %4d %5d %3d %5d %4d %6d %4d %4d %5d %3d %5d %4d %6d %s%s %4s%s\n"
 #define ACN_FORMAT2 "%s %u %d %d %d %d %d %d %d %d %d %d %d %d %d %d %s%s %s%s\n"
 	for (x = 0; x < ARRAY_LEN(iaxs); x++) {
 		ast_mutex_lock(&iaxsl[x]);
@@ -7597,8 +7597,8 @@ static char *handle_cli_iax2_show_netstats(struct ast_cli_entry *e, int cmd, str
 	}
 	if (a->argc != 3)
 		return CLI_SHOWUSAGE;
-	ast_cli(a->fd, "                           -------- LOCAL ---------------------  -------- REMOTE --------------------\n");
-	ast_cli(a->fd, "Channel               RTT  Jit  Del  Lost   %%  Drop  OOO  Kpkts  Jit  Del  Lost   %%  Drop  OOO  Kpkts FirstMsg    LastMsg\n");
+	ast_cli(a->fd, "                                -------- LOCAL ---------------------  -------- REMOTE --------------------\n");
+	ast_cli(a->fd, "Channel                    RTT  Jit  Del  Lost   %%  Drop  OOO  Kpkts  Jit  Del  Lost   %%  Drop  OOO  Kpkts FirstMsg    LastMsg\n");
 	numchans = ast_cli_netstats(NULL, a->fd, 1);
 	ast_cli(a->fd, "%d active IAX channel%s\n", numchans, (numchans != 1) ? "s" : "");
 	return CLI_SUCCESS;