replaced freenode with libera.chat (#113)

Author: n0toose

kirc.1

@@ -21,7 +21,7 @@ text and color can be controlled with ANSI escape sequences.
 .SH OPTIONS
 .TP
 .BI \-s " server"
-Overrides the default host (irc.freenode.net)
+Overrides the default host (irc.libera.chat)
 .TP
 .BI \-p " port"
 Overrides the default port (6697)

kirc.c

@@ -25,7 +25,7 @@ static int   conn;                      /* connection socket */
 static int   verb = 0;                  /* verbose output */
 static int   sasl = 0;                  /* SASL method */
 static int   isu8 = 0;                  /* UTF-8 flag */
-static char *host = "irc.freenode.net"; /* host address */
+static char *host = "irc.libera.chat";  /* host address */
 static char *port = "6667";             /* port */
 static char *chan = NULL;               /* channel(s) */
 static char *nick = NULL;               /* nickname */