adb: remove extraneous newline from skip message

Change-Id: I12314da589bf0db14b37ae4c1f526665182f4776
diff --git a/file_sync_client.cpp b/file_sync_client.cpp
index 320891d..d284f08 100644
--- a/file_sync_client.cpp
+++ b/file_sync_client.cpp
@@ -740,7 +740,7 @@
                 ci.time = time;
                 ci.size = size;
             } else {
-                sc.Warning("skipping special file '%s'\n", name);
+                sc.Warning("skipping special file '%s'", name);
                 ci.skip = true;
             }
             filelist->push_back(ci);