SRTP: fix doc-test issue building doc code
@@ -58,11 +58,13 @@ pub(crate) fn aes_cm_key_derivation(
/// Generate IV https://tools.ietf.org/html/rfc3711#section-4.1.1
/// where the 128-bit integer value IV SHALL be defined by the SSRC, the
/// SRTP packet index i, and the SRTP session salting key k_s, as below.
-/// - roc = a 32-bit unsigned rollover counter (roc), which records how many
-/// - times the 16-bit RTP sequence number has been reset to zero after
-/// - passing through 65,535
+/// ROC = a 32-bit unsigned rollover counter (roc), which records how many
+/// times the 16-bit RTP sequence number has been reset to zero after
+/// passing through 65,535
+/// ```nobuild
/// i = 2^16 * roc + SEQ
/// IV = (salt*2 ^ 16) | (ssrc*2 ^ 64) | (i*2 ^ 16)
+/// ```
pub(crate) fn generate_counter(
sequence_number: u16,
rollover_counter: u32,
