Canonicalize Python shebangs

cmd/arc_summary/arc_summary2

@@ -1,4 +1,4 @@
-#!/usr/bin/python2
+#!/usr/bin/env python2
 #
 # $Id: arc_summary.pl,v 388:e27800740aa2 2011-07-08 02:53:29Z jhell $
 #

cmd/arc_summary/arc_summary3

@@ -1,4 +1,4 @@
-#!/usr/bin/python3
+#!/usr/bin/env python3
 #
 # Copyright (c) 2008 Ben Rockwood <[email protected]>,
 # Copyright (c) 2010 Martin Matuska <[email protected]>,

cmd/arcstat/Makefile.am

@@ -8,6 +8,6 @@ dist_bin_SCRIPTS = arcstat
 #
 if USING_PYTHON_2
 install-exec-hook:
-	sed --in-place 's|^#!/usr/bin/python3|#!/usr/bin/python2|' \
+	sed --in-place 's|^#!/usr/bin/env python3|#!/usr/bin/env python2|' \
 	    $(DESTDIR)$(bindir)/arcstat
 endif

cmd/arcstat/arcstat

@@ -1,4 +1,4 @@
-#!/usr/bin/python3
+#!/usr/bin/env python3
 #
 # Print out ZFS ARC Statistics exported via kstat(1)
 # For a definition of fields, or usage, use arctstat.pl -v

cmd/dbufstat/Makefile.am

@@ -8,6 +8,6 @@ dist_bin_SCRIPTS = dbufstat
 #
 if USING_PYTHON_2
 install-exec-hook:
-	sed --in-place 's|^#!/usr/bin/python3|#!/usr/bin/python2|' \
+	sed --in-place 's|^#!/usr/bin/env python3|#!/usr/bin/env python2|' \
 	    $(DESTDIR)$(bindir)/dbufstat
 endif

cmd/dbufstat/dbufstat

@@ -1,4 +1,4 @@
-#!/usr/bin/python3
+#!/usr/bin/env python3
 #
 # Print out statistics for all cached dmu buffers.  This information
 # is available through the dbufs kstat and may be post-processed as

rpm/generic/zfs.spec.in

@@ -53,10 +53,6 @@
 %bcond_with    asan
 %bcond_with    systemd
 
-# Exclude test-runner.py from the rpmbuild shebang check to allow it to run
-# under Python 2 and 3.
-%global __brp_mangle_shebangs_exclude_from test-runner.py
-
 # Generic enable switch for systemd
 %if %{with systemd}
 %define _systemd 1
@@ -354,6 +350,14 @@ make %{?_smp_mflags}
 %{__rm} -rf $RPM_BUILD_ROOT
 make install DESTDIR=%{?buildroot}
 find %{?buildroot}%{_libdir} -name '*.la' -exec rm -f {} \;
+%if 0%{!?__brp_mangle_shebangs:1}
+find %{?buildroot}%{_bindir} \
+    \( -name arc_summary -or -name arcstat -or -name dbufstat \) \
+    -exec %{__sed} -i 's|^#!.*|#!%{__python}|' {} \;
+find %{?buildroot}%{_datadir} \
+    \( -name test-runner.py -or -name zts-report.py \) \
+    -exec %{__sed} -i 's|^#!.*|#!%{__python}|' {} \;
+%endif
 
 %post
 %if 0%{?_systemd}

tests/test-runner/bin/Makefile.am

@@ -9,7 +9,7 @@ dist_pkgdata_SCRIPTS = \
 #
 if USING_PYTHON_2
 install-data-hook:
-	sed --in-place 's|^#!/usr/bin/python3|#!/usr/bin/python2|' \
+	sed --in-place 's|^#!/usr/bin/env python3|#!/usr/bin/env python2|' \
 	    $(DESTDIR)$(pkgdatadir)/test-runner.py \
 	    $(DESTDIR)$(pkgdatadir)/zts-report.py
 endif

tests/test-runner/bin/test-runner.py

@@ -1,4 +1,4 @@
-#!/usr/bin/python3
+#!/usr/bin/env python3
 
 #
 # This file and its contents are supplied under the terms of the

tests/test-runner/bin/zts-report.py

@@ -1,4 +1,4 @@
-#!/usr/bin/python3
+#!/usr/bin/env python3
 
 #
 # This file and its contents are supplied under the terms of the