Fix a few print statements for py3

Fedora packaging mandates support for py3 nowadays, so I have to
fix stuff like this. Interestingly enough, we don't seem to need
from future import __print_statement__ here.

test/test_pyeclib_api.py

@@ -536,7 +536,7 @@ class TestPyECLibDriver(unittest.TestCase):
         pyeclib_driver.reconstruct([fragments[0]], [1,2,3,4,5,6])
       except ECDriverError as e:
         hit_exception = True
-        print e.error_str.__str__()
+        print(e.error_str.__str__())
         self.assertTrue(e.error_str.__str__().find("Insufficient number of fragments") > -1) 
 
       self.assertTrue(hit_exception)

test/test_pyeclib_c.py

@@ -40,7 +40,7 @@ def collect_available_backends():
            else:
                 handle = pyeclib_c.init(10, 4, ec_type.value)
            available_backends.append(ec_type.name)
-           print ec_type.name
+           print(ec_type.name)
         except:
             pass
     return available_backends

tools/pyeclib_conf_tool.py

@@ -245,7 +245,7 @@ for scheme in schemes:
 
     timer.reset()
 
-print results
+print(results)
 results.sort(lambda x, y: (int)((1000 * x[1]) - (1000 * y[1])))
 
 for i in range(len(results)):