Use python2 explicitly (#1605329).

Signed-off-by: Randy Barlow <randy@electronsweatshop.com>

openpgm.spec

@@ -33,6 +33,9 @@ This package contains OpenPGM related development libraries and header files.
 %prep
 %setup -q -n libpgm-%{version}~dfsg/openpgm/pgm
 
+sed -i "s:#!/usr/bin/python:#!/usr/bin/python2:" version_generator.py
+
+
 %build
 %configure
 make %{_smp_mflags}
@@ -58,6 +61,7 @@ rm %{buildroot}%{_libdir}/libpgm.{a,la}
 
 %changelog
 * Wed Sep 19 2018 Randy Barlow <bowlofeggs@fedoraproject.org> - 5.2.122-14
+- Use python2 explicitly (#1605329).
 - Remove unnecessary calls to ldconfig.
 
 * Fri Jul 13 2018 Fedora Release Engineering <releng@fedoraproject.org> - 5.2.122-13