refactor(scribe): normalize ASCII formatting

Remove decorative Unicode banner comments, replace em-dashes with
hyphens across Dockerfile, configs, docs, and one Go log string,
alphabetize the builder-stage yum package list, and drop the
non-standard description/version LABELs from the runtime stage.

scribe-2.2/example/README.md

@@ -7,7 +7,7 @@ A one-command demo that proves the Scribe config actually writes logs.
 Thrift, pushes a few messages, and exits. The resulting log files appear on your host under
 [`./logs`](./logs).
 
-> Scribe is receive-only — it writes **nothing** until a client sends it messages. The Go
+> Scribe is receive-only - it writes **nothing** until a client sends it messages. The Go
 > sender is what makes this example produce log files.
 
 ---
@@ -38,7 +38,7 @@ ls logs/example/
 cat logs/example/example-*_00000
 ```
 
-You should see the five `Hello from Go sender — message N/5` lines.
+You should see the five `Hello from Go sender - message N/5` lines.
 
 ---
 
@@ -48,17 +48,17 @@ Adjust the sender via environment variables in [`docker-compose.yml`](./docker-c
 
 | Env | Default | Purpose |
 |-----|---------|---------|
-| `SCRIBE_CATEGORY` | `example` | Message category → log subdirectory name |
+| `SCRIBE_CATEGORY` | `example` | Message category to log subdirectory name |
 | `SCRIBE_COUNT` | `5` | Number of messages to send |
 | `SCRIBE_HOST` | `scribe` | Daemon hostname (compose service name) |
 | `SCRIBE_PORT` | `1463` | Thrift port |
 
 To change *where/how* Scribe stores logs (rotation, store type, per-category routing), edit
-[`config/scribe.conf`](../config/scribe.conf) — see the
+[`config/scribe.conf`](../config/scribe.conf) - see the
 [Configuration Reference](../README.md#configuration-reference).
 
 The sender ([`sender/main.go`](./sender/main.go)) hand-encodes the Thrift framed binary
-`Log()` call using only the Go standard library — no Apache Thrift dependency, no generated
+`Log()` call using only the Go standard library - no Apache Thrift dependency, no generated
 bindings. For the higher-level client API, see the Python snippet in the
 [main README](../README.md#sending-log-messages).
 
@@ -66,9 +66,9 @@ bindings. For the higher-level client API, see the Python snippet in the
 
 ## Troubleshoot
 
-- **`logs/` stays empty** — no messages were written yet. Check the `sender` output in the
+- **`logs/` stays empty** - no messages were written yet. Check the `sender` output in the
   compose logs; it exits non-zero and logs the cause if the send failed.
-- **Permission denied writing logs (native Linux hosts)** — Scribe runs as a non-root user
+- **Permission denied writing logs (native Linux hosts)** - Scribe runs as a non-root user
   inside the container, which may not be able to write to the bind-mounted host directory.
   Fix by loosening the local dir before running:
 
@@ -77,7 +77,7 @@ bindings. For the higher-level client API, see the Python snippet in the
   ```
 
   On Docker Desktop (Windows/macOS) this is normally not needed.
-- **Sender can't connect** — it retries for ~10s on startup. If Scribe takes longer to boot,
+- **Sender can't connect** - it retries for ~10s on startup. If Scribe takes longer to boot,
   re-run `docker compose up` or increase the retry window in `sender/main.go`.
 
 ---

scribe-2.2/example/docker-compose.yml

@@ -9,7 +9,7 @@ services:
     volumes:
       # Reuse the repo's default config (read-only).
       - ../config/scribe.conf:/etc/scribe/scribe.conf:ro
-      # Host-visible log output — files land here after the sender runs.
+      # Host-visible log output: files land here after the sender runs.
       - ./logs:/var/log/scribe
     restart: unless-stopped
 

scribe-2.2/example/sender/main.go

@@ -2,7 +2,7 @@
 // daemon to demonstrate that the example writes real log files.
 //
 // It speaks Scribe's Thrift RPC by hand-encoding the framed binary `Log()` call
-// using only the Go standard library — no Apache Thrift dependency and no
+// using only the Go standard library - no Apache Thrift dependency and no
 // generated bindings. The Scribe Thrift contract:
 //
 //	enum ResultCode { OK = 0, TRY_LATER = 1 }
@@ -122,7 +122,7 @@ func readResultCode(r io.Reader) (int32, error) {
 	}
 	br := bytes.NewReader(frame)
 
-	// messageBegin — detect strict vs non-strict from the first i32.
+	// messageBegin: detect strict vs non-strict from the first i32.
 	var i32buf [4]byte
 	if _, err := io.ReadFull(br, i32buf[:]); err != nil {
 		return -1, fmt.Errorf("read message header: %w", err)
@@ -158,7 +158,7 @@ func readResultCode(r io.Reader) (int32, error) {
 		return -1, err
 	}
 	if typeID == tSTOP {
-		return 0, nil // no return field present → treat as OK
+		return 0, nil // no return field present; treat as OK
 	}
 	var idBuf [2]byte
 	if _, err := io.ReadFull(br, idBuf[:]); err != nil {
@@ -208,7 +208,7 @@ func main() {
 
 	messages := make([]string, 0, count)
 	for i := 1; i <= count; i++ {
-		messages = append(messages, fmt.Sprintf("Hello from Go sender — message %d/%d", i, count))
+		messages = append(messages, fmt.Sprintf("Hello from Go sender - message %d/%d", i, count))
 	}
 
 	if _, err := conn.Write(buildLogFrame(category, messages)); err != nil {