typo fixes - https://github.com/vlajos/misspell_fixer

src/core/commands.h

@@ -158,7 +158,7 @@ char *cmd_get_quoted_param(char **data);
 /* get parameters from command - you should point free_me somewhere and
    cmd_params_free() it after you don't use any of the parameters anymore.
 
-   Returns TRUE if all ok, FALSE if error occured. */
+   Returns TRUE if all ok, FALSE if error occurred. */
 int cmd_get_params(const char *data, gpointer *free_me, int count, ...);
 
 void cmd_params_free(void *free_me);

src/core/net-nonblock.h

@@ -29,7 +29,7 @@ int net_gethostbyname_nonblock(const char *addr, GIOChannel *pipe,
 			       int reverse_lookup);
 /* Get host's name, call func when finished */
 int net_gethostbyaddr_nonblock(IPADDR *ip, NET_HOST_CALLBACK func, void *data);
-/* get the resolved IP address. returns -1 if some error occured with read() */
+/* get the resolved IP address. returns -1 if some error occurred with read() */
 int net_gethostbyname_return(GIOChannel *pipe, RESOLVED_IP_REC *rec);
 
 /* Connect to server, call func when finished */

src/core/net-sendbuffer.c

@@ -109,7 +109,7 @@ static int buffer_add(NET_SENDBUF_REC *rec, const void *data, int size)
 
 /* Send data, if all of it couldn't be sent immediately, it will be resent
    automatically after a while. Returns -1 if some unrecoverable error
-   occured. */
+   occurred. */
 int net_sendbuffer_send(NET_SENDBUF_REC *rec, const void *data, int size)
 {
 	int ret;

src/core/net-sendbuffer.h

@@ -24,7 +24,7 @@ void net_sendbuffer_destroy(NET_SENDBUF_REC *rec, int close);
 
 /* Send data, if all of it couldn't be sent immediately, it will be resent
    automatically after a while. Returns -1 if some unrecoverable error
-   occured. */
+   occurred. */
 int net_sendbuffer_send(NET_SENDBUF_REC *rec, const void *data, int size);
 
 int net_sendbuffer_receive_line(NET_SENDBUF_REC *rec, char **str, int read_socket);

src/core/network.c

@@ -624,7 +624,7 @@ const char *net_gethosterror(int error)
 int net_hosterror_notfound(int error)
 {
 #ifdef HAVE_IPV6
-#ifdef EAI_NODATA /* NODATA is depricated */
+#ifdef EAI_NODATA /* NODATA is deprecated */
 	return error != 1 && (error == EAI_NONAME || error == EAI_NODATA);
 #else
 	return error != 1 && (error == EAI_NONAME);

src/core/nicklist.c

@@ -342,7 +342,7 @@ GSList *nicklist_get_same_unique(SERVER_REC *server, void *id)
 	return rec.list;
 }
 
-/* nick record comparision for sort functions */
+/* nick record comparison for sort functions */
 int nicklist_compare(NICK_REC *p1, NICK_REC *p2, const char *nick_prefix)
 {
 	int i;

src/core/query-rec.h

@@ -7,5 +7,5 @@ char *server_tag;
 time_t last_unread_msg;
 
 unsigned int unwanted:1; /* TRUE if the other side closed or
-			    some error occured (DCC chats!) */
+			    some error occurred (DCC chats!) */
 unsigned int destroying:1;