Fix typo in doc (their->they) (#2014)
diff --git a/kotlinx-coroutines-core/common/src/flow/operators/Emitters.kt b/kotlinx-coroutines-core/common/src/flow/operators/Emitters.kt
index d296517..1aba633 100644
--- a/kotlinx-coroutines-core/common/src/flow/operators/Emitters.kt
+++ b/kotlinx-coroutines-core/common/src/flow/operators/Emitters.kt
@@ -14,7 +14,7 @@
import kotlin.jvm.*
// ------------------ WARNING ------------------
-// These emitting operators must use safe flow builder, because their allow
+// These emitting operators must use safe flow builder, because they allow
// user code to directly emit to the underlying FlowCollector.
/**