docs(changelog,header,proto,client): Fix small typos

src/header/common/link.rs

@@ -870,7 +870,7 @@ fn verify_and_trim(s: &str, b: (u8, u8)) -> ::Result<&str> {
     let byte_array = s.as_bytes();
 
     // Verify that `s` starts with `b.0` and ends with `b.1` and return
-    // the contained substring after triming whitespace.
+    // the contained substring after trimming whitespace.
     if length > 1 && b.0 == byte_array[0] && b.1 == byte_array[length - 1] {
         Ok(s.trim_matches(
             |c: char| c == b.0 as char || c == b.1 as char || c.is_whitespace())

src/proto/h1/parse.rs

@@ -90,7 +90,7 @@ impl Http1Transaction for ServerTransaction {
             // https://tools.ietf.org/html/rfc7230#section-3.3.3
             // If Transfer-Encoding header is present, and 'chunked' is
             // not the final encoding, and this is a Request, then it is
-            // mal-formed. A server should responsed with 400 Bad Request.
+            // mal-formed. A server should respond with 400 Bad Request.
             if encodings.last() == Some(&header::Encoding::Chunked) {
                 Ok(Decoder::chunked())
             } else {
@@ -137,7 +137,7 @@ impl Http1Transaction for ServerTransaction {
 impl ServerTransaction {
     fn set_length(head: &mut MessageHead<StatusCode>, has_body: bool, method: Option<&Method>) -> Encoder {
         // these are here thanks to borrowck
-        // `if method == Some(&Method::Get)` says the RHS doesnt live long enough
+        // `if method == Some(&Method::Get)` says the RHS doesn't live long enough
         const HEAD: Option<&'static Method> = Some(&Method::Head);
         const CONNECT: Option<&'static Method> = Some(&Method::Connect);