tools/opensnoop: Fix compilation problem

Fix stupid bug introduced by myself.

Signed-off-by: Mauricio Vásquez <mauricio@kinvolk.io>

diff --git a/tools/opensnoop.py b/tools/opensnoop.py
index dffb021..51d3dc0 100755 (executable)
--- a/tools/opensnoop.py
+++ b/tools/opensnoop.py
@@ -195,7 +195,7 @@ KRETFUNC_PROBE(do_sys_open, int dfd, const char __user *filename, int flags, int
 
     events.perf_submit(ctx, &data, sizeof(data));
 
-    return 0:
+    return 0;
 }
 """