fix a few typos

README.sita

@@ -1,5 +1,5 @@
 The following instructions apply if you have a Linux platform and want
-libpcap to support the 'ACN' WAN/LAN router product from from SITA
+libpcap to support the 'ACN' WAN/LAN router product from SITA
 (http://www.sita.aero)
 
 This might also work on non-Linux Unix-compatible platforms, but that

pcap-rpcap.c

@@ -898,7 +898,7 @@ int pcap_startcapture_remote(pcap_t *fp)
 {
 	char sendbuf[RPCAP_NETBUF_SIZE];	/* temporary buffer in which data to be sent is buffered */
 	int sendbufidx = 0;			/* index which keeps the number of bytes currently buffered */
-	char portdata[PCAP_BUF_SIZE];		/* temp variable needed to keep the network port for the the data connection */
+	char portdata[PCAP_BUF_SIZE];		/* temp variable needed to keep the network port for the data connection */
 	uint32 totread = 0;			/* number of bytes of the payload read from the socket */
 	int nread;
 	int retval;				/* store the return value of the functions */

pcap/pcap.h

@@ -457,7 +457,7 @@ PCAP_API void	bpf_dump(const struct bpf_program *, int);
   */
   struct pcap_send_queue
   {
-	u_int maxlen;	/* Maximum size of the the queue, in bytes. This
+	u_int maxlen;	/* Maximum size of the queue, in bytes. This
 			   variable contains the size of the buffer field. */
 	u_int len;	/* Current size of the queue, in bytes. */
 	char *buffer;	/* Buffer containing the packets to be sent. */

pcap_set_tstamp_type.3pcap.in

@@ -34,7 +34,7 @@ int pcap_set_tstamp_type(pcap_t *p, int tstamp_type);
 .fi
 .SH DESCRIPTION
 .B pcap_set_tstamp_type()
-sets the the type of time stamp desired for packets captured on the pcap
+sets the type of time stamp desired for packets captured on the pcap
 descriptor to the type specified by
 .IR tstamp_type .
 It must be called on a pcap descriptor created by