tools/examples: hardcode #!/usr/bin/python shebang
diff --git a/tools/cachestat.py b/tools/cachestat.py
index 90a55b0..b00c804 100755
--- a/tools/cachestat.py
+++ b/tools/cachestat.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
 #
 # cachestat     Count cache kernel function calls.
 #               For Linux, uses BCC, eBPF. See .c file.