pypy: fix failing test-devel-warnings.t with Pypy5.6.0

In Pypy 5.6.0, traceback exception classes are not displayed with their full
qualified name.

Instead of displaying mercurial.error.ProgrammingError, Pypy displays
ProgrammingError.

Update the test to support both version.

tests/test-devel-warnings.t

@@ -129,7 +129,7 b' Stripping from a transaction'
   $ hg commit -m a
   $ hg stripintr 2>&1 | egrep -v '^(\*\*|  )'
   Traceback (most recent call last):
-  mercurial.error.ProgrammingError: cannot strip from inside a transaction
+  *ProgrammingError: cannot strip from inside a transaction (glob)
 
   $ hg oldanddeprecated
   devel-warn: foorbar is deprecated, go shopping
@@ -187,7 +187,7 b' Test programming error failure:'
   ** Extensions loaded: * (glob)
   ** ProgrammingError: transaction requires locking
   Traceback (most recent call last):
-  mercurial.error.ProgrammingError: transaction requires locking
+  *ProgrammingError: transaction requires locking (glob)
 
   $ hg programmingerror 2>&1 | egrep -v '^  '
   ** Unknown exception encountered with possibly-broken third-party extension buggylocking
@@ -200,7 +200,7 b' Test programming error failure:'
   ** ProgrammingError: something went wrong
   ** (try again)
   Traceback (most recent call last):
-  mercurial.error.ProgrammingError: something went wrong
+  *ProgrammingError: something went wrong (glob)
 
 Old style deprecation warning