rust: fix byte_char_slices clippy warnings

warning: can be more succinctly written as a byte str
   --> src/mime/smtp.rs:762:37
    |
762 |     mime_smtp_find_url_strings(ctx, &[b'\n']);
    |                                     ^^^^^^^^ help: try: `b"\n"`
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#byte_char_slices
    = note: `#[warn(clippy::byte_char_slices)]` on by default

(cherry picked from commit 564f685eea1af343642b52ba6c7f367167ac03f2)

diff --git a/rust/src/http2/detect.rs b/rust/src/http2/detect.rs
index 0e7cee87573d13fdfae7cca78115e12bae0a8159..ce12129058666cd19fd28853c82d5c67d9d9c616 100644 (file)
--- a/rust/src/http2/detect.rs
+++ b/rust/src/http2/detect.rs
@@ -434,11 +434,11 @@ pub fn http2_frames_get_header_value_vec(
                         vec.extend_from_slice(&block.value);
                         found = 1;
                     } else if found == 1 && Rc::strong_count(&block.name) <= 2 {
-                        vec.extend_from_slice(&[b',', b' ']);
+                        vec.extend_from_slice(b", ");
                         vec.extend_from_slice(&block.value);
                         found = 2;
                     } else if Rc::strong_count(&block.name) <= 2 {
-                        vec.extend_from_slice(&[b',', b' ']);
+                        vec.extend_from_slice(b", ");
                         vec.extend_from_slice(&block.value);
                     }
                 }
@@ -474,11 +474,11 @@ fn http2_frames_get_header_value<'a>(
                         if let Ok(s) = single {
                             vec.extend_from_slice(s);
                         }
-                        vec.extend_from_slice(&[b',', b' ']);
+                        vec.extend_from_slice(b", ");
                         vec.extend_from_slice(&block.value);
                         found = 2;
                     } else if Rc::strong_count(&block.name) <= 2 {
-                        vec.extend_from_slice(&[b',', b' ']);
+                        vec.extend_from_slice(b", ");
                         vec.extend_from_slice(&block.value);
                     }
                 }
@@ -732,7 +732,7 @@ fn http2_escape_header(blocks: &[parser::HTTP2FrameHeaderBlock], i: u32) -> Vec<
     let normalsize = blocks[i as usize].value.len() + 2 + blocks[i as usize].name.len();
     let mut vec = Vec::with_capacity(normalsize);
     vec.extend_from_slice(&blocks[i as usize].name);
-    vec.extend_from_slice(&[b':', b' ']);
+    vec.extend_from_slice(b": ");
     vec.extend_from_slice(&blocks[i as usize].value);
     return vec;
 }
@@ -752,12 +752,12 @@ pub unsafe extern "C" fn rs_http2_tx_get_header_names(
             for block in blocks.iter() {
                 // we do not escape linefeeds in headers names
                 vec.extend_from_slice(&block.name);
-                vec.extend_from_slice(&[b'\r', b'\n']);
+                vec.extend_from_slice(b"\r\n");
             }
         }
     }
     if vec.len() > 2 {
-        vec.extend_from_slice(&[b'\r', b'\n']);
+        vec.extend_from_slice(b"\r\n");
         tx.escaped.push(vec);
         let idx = tx.escaped.len() - 1;
         let value = &tx.escaped[idx];
@@ -817,9 +817,9 @@ pub unsafe extern "C" fn rs_http2_tx_get_headers(
                 if !http2_header_iscookie(direction.into(), &block.name) {
                     // we do not escape linefeeds nor : in headers names
                     vec.extend_from_slice(&block.name);
-                    vec.extend_from_slice(&[b':', b' ']);
+                    vec.extend_from_slice(b": ");
                     vec.extend_from_slice(http2_header_trimspaces(&block.value));
-                    vec.extend_from_slice(&[b'\r', b'\n']);
+                    vec.extend_from_slice(b"\r\n");
                 }
             }
         }
@@ -850,9 +850,9 @@ pub unsafe extern "C" fn rs_http2_tx_get_headers_raw(
             for block in blocks.iter() {
                 // we do not escape linefeeds nor : in headers names
                 vec.extend_from_slice(&block.name);
-                vec.extend_from_slice(&[b':', b' ']);
+                vec.extend_from_slice(b": ");
                 vec.extend_from_slice(&block.value);
-                vec.extend_from_slice(&[b'\r', b'\n']);
+                vec.extend_from_slice(b"\r\n");
             }
         }
     }