scripts/show_delta: add __main__ judgement before main code

When doing Python programming it is a nice convention to insert the if
statement `if __name__ == "__main__":` before any main code that does
actual functionalities to ensure the code will be executed only as a
script rather than as an imported module.  Hence attach the missing
judgement to show_delta.

Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Hu Haowen <[email protected]>
Reviewed-by: Nick Desaulniers <[email protected]>
Reviewed-by: Miguel Ojeda <[email protected]>
Cc: Greg Kroah-Hartman <[email protected]>
Cc: Masahiro Yamada <[email protected]>
Cc: Nicolas Schier <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>

1 files changed, 2 insertions, 1 deletions

diff --git a/scripts/show_delta b/scripts/show_delta
index 28e67e178194..291ad65e3089 100755
--- a/scripts/show_delta
+++ b/scripts/show_delta
@@ -125,4 +125,5 @@ def main():
 	for line in lines:
 		print (convert_line(line, base_time),)
 
-main()
+if __name__ == "__main__":
+	main()