python/semanage: fix Python syntax of catching several exceptions

"except OSError, ImportError:" does not perform what it says: it is the
Python 2 syntax of catching OSError exceptions as "ImportError" (like
"except OSError, e:"), and this is indeed caught by Python3:

      File "./python/semanage/seobject.py", line 143
        except OSError, ImportError:
                      ^
    SyntaxError: invalid syntax

The correct syntax consists in using parentheses.

Signed-off-by: Nicolas Iooss <nicolas.iooss@m4x.org>
1 file changed