tools/examples: hardcode #!/usr/bin/python shebang
diff --git a/tools/cpudist.py b/tools/cpudist.py
index 9e61341..4d7c9eb 100755
--- a/tools/cpudist.py
+++ b/tools/cpudist.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
 # @lint-avoid-python-3-compatibility-imports
 #
 # cpudist   Summarize on- and off-CPU time per task as a histogram.