Clobber iOS builders.

TBR=titovartem@webrtc.org

Bug: webrtc:11937
Change-Id: Ifca722d2e033b4a058f4e912535e622183a1165a
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/184265
Commit-Queue: Mirko Bonadei <mbonadei@webrtc.org>
Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#32107}
diff --git a/tools_webrtc/get_landmines.py b/tools_webrtc/get_landmines.py
index 399fb0a..57f5373 100755
--- a/tools_webrtc/get_landmines.py
+++ b/tools_webrtc/get_landmines.py
@@ -55,6 +55,7 @@
            'landing (changing rtc_executable -> rtc_test on iOS)')
     print 'Another landmine for low_bandwidth_audio_test (webrtc:7430)'
     print 'Clobber to change neteq_rtpplay type to executable'
+    print 'Clobber to remove .xctest files.'
 
 
 def main():