[NETFILTER]: Spelling fixes

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/netfilter/nf_conntrack_sip.c

@@ -187,7 +187,7 @@ static const struct sip_header_nfo ct_sip_hdrs[] = {
 	}
 };
 
-/* get line lenght until first CR or LF seen. */
+/* get line length until first CR or LF seen. */
 int ct_sip_lnlen(const char *line, const char *limit)
 {
 	const char *k = line;
@@ -236,7 +236,7 @@ static int digits_len(struct nf_conn *ct, const char *dptr,
 	return len;
 }
 
-/* get digits lenght, skiping blank spaces. */
+/* get digits length, skipping blank spaces. */
 static int skp_digits_len(struct nf_conn *ct, const char *dptr,
 			  const char *limit, int *shift)
 {