When migrating all projects configs during Schema_130 migration,
any unexpected exception would not show the name of the impacted
repo, causing a headache for the Gerrit admin that is willing to
migrate.
Make sure the impacted repository and the exception caused are
always displayed so that the Gerrit admin can have an easier
life understanding what happens.
Change-Id: I133c435d9e6d8677964102b26740d55d687764c6
3aca363032