Fix typos in comments to ticker channels (#1987)

Author: vadimsemenov

docs/channels.md

@@ -634,9 +634,9 @@ import kotlinx.coroutines.channels.*
 fun main() = runBlocking<Unit> {
     val tickerChannel = ticker(delayMillis = 100, initialDelayMillis = 0) // create ticker channel
     var nextElement = withTimeoutOrNull(1) { tickerChannel.receive() }
-    println("Initial element is available immediately: $nextElement") // initial delay hasn't passed yet
+    println("Initial element is available immediately: $nextElement") // no initial delay
 
-    nextElement = withTimeoutOrNull(50) { tickerChannel.receive() } // all subsequent elements has 100ms delay
+    nextElement = withTimeoutOrNull(50) { tickerChannel.receive() } // all subsequent elements have 100ms delay
     println("Next element is not ready in 50 ms: $nextElement")
 
     nextElement = withTimeoutOrNull(60) { tickerChannel.receive() }

kotlinx-coroutines-core/jvm/test/guide/example-channel-10.kt

@@ -11,9 +11,9 @@ import kotlinx.coroutines.channels.*
 fun main() = runBlocking<Unit> {
     val tickerChannel = ticker(delayMillis = 100, initialDelayMillis = 0) // create ticker channel
     var nextElement = withTimeoutOrNull(1) { tickerChannel.receive() }
-    println("Initial element is available immediately: $nextElement") // initial delay hasn't passed yet
+    println("Initial element is available immediately: $nextElement") // no initial delay
 
-    nextElement = withTimeoutOrNull(50) { tickerChannel.receive() } // all subsequent elements has 100ms delay
+    nextElement = withTimeoutOrNull(50) { tickerChannel.receive() } // all subsequent elements have 100ms delay
     println("Next element is not ready in 50 ms: $nextElement")
 
     nextElement = withTimeoutOrNull(60) { tickerChannel.receive() }