Minor doc fixes

doc/api/dns.md

@@ -514,7 +514,7 @@ will be present on the object:
 | `"SRV"` | Refer to [`dns.resolveSrv()`][] |
 | `"TXT"` | This type of record contains an array property called `entries` which refers to [`dns.resolveTxt()`][], eg. `{ entries: ['...'], type: 'TXT' }` |
 
-Here is a example of the `ret` object passed to the callback:
+Here is an example of the `ret` object passed to the callback:
 
 <!-- eslint-disable semi -->
 ```js

doc/api/events.md

@@ -409,7 +409,7 @@ added: v0.3.0
 * `eventName` {any} The name of the event.
 * `listener` {Function} The callback function
 
-Adds a **one time** `listener` function for the event named `eventName`. The
+Adds a **one-time** `listener` function for the event named `eventName`. The
 next time `eventName` is triggered, this listener is removed and then invoked.
 
 ```js
@@ -464,7 +464,7 @@ added: v6.0.0
 * `eventName` {any} The name of the event.
 * `listener` {Function} The callback function
 
-Adds a **one time** `listener` function for the event named `eventName` to the
+Adds a **one-time** `listener` function for the event named `eventName` to the
 *beginning* of the listeners array. The next time `eventName` is triggered, this
 listener is removed, and then invoked.
 

doc/api/http.md

@@ -1785,7 +1785,7 @@ This function allows one to transparently issue requests.
 string, it is automatically parsed with [`url.parse()`][]. If it is a [`URL`][]
 object, it will be automatically converted to an ordinary `options` object.
 
-The optional `callback` parameter will be added as a one time listener for
+The optional `callback` parameter will be added as a one-time listener for
 the [`'response'`][] event.
 
 `http.request()` returns an instance of the [`http.ClientRequest`][]

doc/api/net.md

@@ -802,7 +802,7 @@ socket.on('timeout', () => {
 
 If `timeout` is 0, then the existing idle timeout is disabled.
 
-The optional `callback` parameter will be added as a one time listener for the
+The optional `callback` parameter will be added as a one-time listener for the
 [`'timeout'`][] event.
 
 ### socket.unref()

doc/api/repl.md

@@ -418,7 +418,7 @@ changes:
   * `output` {Writable} The Writable stream to which REPL output will be
     written. Defaults to `process.stdout`.
   * `terminal` {boolean} If `true`, specifies that the `output` should be
-    treated as a a TTY terminal, and have ANSI/VT100 escape codes written to it.
+    treated as a TTY terminal, and have ANSI/VT100 escape codes written to it.
     Defaults to checking the value of the `isTTY` property on the `output`
     stream upon instantiation.
   * `eval` {Function} The function to be used when evaluating each given line