diff -r 030d558c6456 -r 5abc47d4ca6b tests/test-check-py3-compat.t
--- a/tests/test-check-py3-compat.t	Tue Sep 18 22:40:03 2018 -0400
+++ b/tests/test-check-py3-compat.t	Tue Sep 18 23:47:21 2018 -0400
@@ -7,7 +7,7 @@
   $ testrepohg files 'set:(**.py)' \
   > -X hgdemandimport/demandimportpy2.py \
   > -X mercurial/thirdparty/cbor \
-  > | sed 's|\\|/|g' | xargs $PYTHON contrib/check-py3-compat.py
+  > | sed 's|\\|/|g' | xargs "$PYTHON" contrib/check-py3-compat.py
   contrib/python-zstandard/setup.py not using absolute_import
   contrib/python-zstandard/setup_zstd.py not using absolute_import
   contrib/python-zstandard/tests/common.py not using absolute_import
@@ -30,7 +30,7 @@
   > -X hgext/fsmonitor/pywatchman \
   > -X mercurial/cffi \
   > -X mercurial/thirdparty \
-  > | sed 's|\\|/|g' | xargs $PYTHON contrib/check-py3-compat.py \
+  > | sed 's|\\|/|g' | xargs "$PYTHON" contrib/check-py3-compat.py \
   > | sed 's/[0-9][0-9]*)$/*)/'
   hgext/convert/transport.py: error importing: <*Error> No module named 'svn.client' (error at transport.py:*) (glob) (?)
   hgext/infinitepush/sqlindexapi.py: error importing: <*Error> No module named 'mysql' (error at sqlindexapi.py:*) (glob) (?)
@@ -42,6 +42,6 @@
 
 #if py3k pygments
   $ testrepohg files 'set:(**.py) and grep(pygments)' | sed 's|\\|/|g' \
-  > | xargs $PYTHON contrib/check-py3-compat.py \
+  > | xargs "$PYTHON" contrib/check-py3-compat.py \
   > | sed 's/[0-9][0-9]*)$/*)/'
 #endif