chore: small fixes and typos

Author: yannham

libdd-library-config/src/tracer_metadata.rs

@@ -37,10 +37,10 @@ pub struct TracerMetadata {
     /// thread context records index into this table. Set to `None` to disable thread-level related
     /// attributes to the process-level context.
     ///
-    /// If set to `Some`, the first key will be automatically to be `datadog.local_root_span_id` in
-    /// the OTel process context, because the thread context handling elsewhere in libdatadog
+    /// If set to `Some`, the first key will be automatically set to `datadog.local_root_span_id`
+    /// in the OTel process context, because the thread context handling elsewhere in libdatadog
     /// relies on this key's index to be zero. Only set additional keys in
-    /// `threadlocal_attribute_keys`; the root span id is considered to be always implicitly here.
+    /// `threadlocal_attribute_keys`; the root span id is considered to always be here implicitly.
     ///
     /// This field is specific to OTel process context. It is ignored for (de)serialization, and is
     /// only used when converting to an OTel process context in

libdd-profiling/src/otel_thread_ctx.rs

@@ -214,9 +214,9 @@ pub mod linux {
             let mut offset = 0;
             let mut fully_encoded = true;
             let root_span_attr = (ROOT_SPAN_KEY_INDEX, root_span_id);
-            let attrs = std::iter::once(&root_span_attr).chain(attributes);
+            let full_attrs = std::iter::once(&root_span_attr).chain(attributes);
 
-            for &(key_index, val) in attrs {
+            for &(key_index, val) in full_attrs {
                 let val_bytes = val.as_bytes();
                 let val_len = val_bytes.len();
                 let val_len = if val_len > 255 {