[gegl] tests/compositions: Print exception if VERBOSE

[Jon Nordby <jonnor src gnome org>]

commit e313675c1405c99ac9ddb1821c2c242a073f4050
Author: Jon Nordby <jononor gmail com>
Date:   Sun Nov 9 21:50:18 2014 +0100

    tests/compositions: Print exception if VERBOSE

 tests/compositions/run-compositions.py |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)
---
diff --git a/tests/compositions/run-compositions.py b/tests/compositions/run-compositions.py
index 7a0ac77..de96552 100755
--- a/tests/compositions/run-compositions.py
+++ b/tests/compositions/run-compositions.py
@@ -124,7 +124,9 @@ class Context():
       subprocess.check_call([self.img_cmp_bin, ref_image_path, out_image_path], env=img_cmp_env)
     except KeyboardInterrupt:
       raise
-    except subprocess.CalledProcessError:
+    except subprocess.CalledProcessError, e:
+      if VERBOSE:
+        print (e)
       print (FAIL_STR, result_name_str)
       self.fail_count += 1
       return False