Fixed some typos, courtesy of codespell

src/libstrongswan/plugins/pkcs7/pkcs7_generic.c

@@ -116,7 +116,7 @@ pkcs7_t *pkcs7_generic_load(container_type_t type, va_list args)
 	{
 		if (blob.len >= 2 &&
 			blob.ptr[0] == ASN1_SEQUENCE && blob.ptr[1] == 0x80)
-		{	/* looks like infinite lenght BER encoding, but we can't handle it.
+		{	/* looks like infinite length BER encoding, but we can't handle it.
 			 * ignore silently, our openssl backend can handle it */
 			return NULL;
 		}