slapschema -v (return code: 0)
# id=00000001
# id=00000002
slapschema --help (return code: 1)
slapschema: invalid option -- '-'
usage: slapschema [-v] [-d debuglevel] [-f configfile] [-F configdir] [-o <name>[=<value>]] [-c]
[-g] [-n databasenumber | -b suffix] [-l ldiffile] [-a filter] [-s subtree] [-H url]