[py] minor, replace os.environ.get with os.getenv
diff --git a/src/check-static-inits.py b/src/check-static-inits.py
index 9e43b81..1c88f22 100755
--- a/src/check-static-inits.py
+++ b/src/check-static-inits.py
@@ -2,8 +2,8 @@
import sys, os, shutil, subprocess, glob, re
-builddir = os.environ.get ('builddir', os.path.dirname (__file__))
-libs = os.environ.get ('libs', '.libs')
+builddir = os.getenv ('builddir', os.path.dirname (__file__))
+libs = os.getenv ('libs', '.libs')
objdump = shutil.which ('objdump')
if not objdump:
