Fix rust comment formatting

src/rust/src/decoder/encoding.rs

@@ -1,16 +1,16 @@
-/// 256 BYTES IS ENOUGH FOR ALL THE SUPPORTED CHARACTERS IN
-/// EIA-708, SO INTERNALLY WE USE THIS TABLE (FOR CONVENIENCE)
-///
-/// 00-1F -> Characters that are in the G2 group in 20-3F,
-///          except for 06, which is used for the closed captions
-///          sign "CC" which is defined in group G3 as 00. (this
-///          is by the article 33).
-/// 20-7F -> Group G0 as is - corresponds to the ASCII code
-/// 80-9F -> Characters that are in the G2 group in 60-7F
-///          (there are several blank characters here, that's OK)
-/// A0-FF -> Group G1 as is - non-English characters and symbols
-///
-/// NOTE: Same as `lib_ccx/ccx_decoder_708_encoding.c` file
+//! 256 BYTES IS ENOUGH FOR ALL THE SUPPORTED CHARACTERS IN
+//! EIA-708, SO INTERNALLY WE USE THIS TABLE (FOR CONVENIENCE)
+//!
+//! 00-1F -> Characters that are in the G2 group in 20-3F,
+//!          except for 06, which is used for the closed captions
+//!          sign "CC" which is defined in group G3 as 00. (this
+//!          is by the article 33).
+//! 20-7F -> Group G0 as is - corresponds to the ASCII code
+//! 80-9F -> Characters that are in the G2 group in 60-7F
+//!          (there are several blank characters here, that's OK)
+//! A0-FF -> Group G1 as is - non-English characters and symbols
+//!
+//! NOTE: Same as `lib_ccx/ccx_decoder_708_encoding.c` file
 
 #[no_mangle]
 pub extern "C" fn dtvcc_get_internal_from_G0(g0_char: u8) -> u8 {