core: Fix redundant space in DB upgrade output

The run_file function only receives one argument, so $2 is always
evaluated as an empty string.

This cause the database upgrade/creation scripts to print
"Running  upgrade sql script" and "Running  upgrade shell script", with
two whitespaces after "Running" instead of just one.

Removing the call to $2 resolves this issue.

Change-Id: I3cb5f8778e570df1f2f76f3a16d32530b9a24b52
Signed-off-by: Allon Mureinik <amureini@redhat.com>