Fix typo in error message

Test: TH
Change-Id: I15bc68da35e34134e4118972c44c5124fc1a15bc
diff --git a/src/android/net/ip/IpClient.java b/src/android/net/ip/IpClient.java
index 81554e3..52b7b6f 100644
--- a/src/android/net/ip/IpClient.java
+++ b/src/android/net/ip/IpClient.java
@@ -1474,7 +1474,7 @@
                         result.complete(snapshot);
                         break;
                     default:
-                        throw new IllegalArgumentException("Invalid apf read command: " + cmd);
+                        throw new IllegalArgumentException("Invalid apf command: " + cmd);
                 }
             } catch (Exception e) {
                 result.completeExceptionally(e);